Proportions

Solving Proportions - One Step

100

1/4 = x/20

What is 5

200

x/3 = 16/12

What is 4

300

8:x = 88:22

What is 2

400

9 to 5 = x to 45

What is 81

500

Simplify the fraction: 20/14 = 10/x

What is 7

Solving Proportions - Two Step

100

1/7=16/(d-28

What is 140

200

(x-10)/23=7/8

What is 30.12

300

7/9=(c+20)/9

What is -13

400

(2x-5)/16=5/7

What is 8.21

500

17/(9k-9)=5/7

What is 3.64

Solving Proportions - Multi-Step

100

9/(s+15)=1/s

What is 1.88

200

4/(n-16)=1/n

What is 

n=-5.33

300

8/(c+28)=5/c

What is 

c=46.67

400

1/(s+12)=9/(s-27)

What is 

s=-16.88

500

4/7=(h+26)/(h+15)

What is 

h=40.67

Word Problems

100

Sam raked 3 bags of leaves in 16 minutes. If he continues to work at the same rate, about how long will it take him to rake 5 bags?

about 27 minutes

200

Bobby drove 110 miles, and his car used up 5 gallons of gas. How many miles can he drive with 16 gallons of gas?

352 miles

300

Mary ran 2 miles in about 23 minutes. If she continued at the same pace, how long will it take her to run 10 miles?

115 minutes

400

If 8 cases of merchandise cost $60, what would a dozen cases cost?

$90

500

A man who is 6 feet tall casts a shadow that is 11 feet long. At the same time, a tree casts a shadow that is 33 feet long. What is the height of the tree?

18 feet