Proportions

Simple Proportions

100

Solve for x: 6/5 = 5/x

25/6

200

Solve for x 

4/8= x/6

What is 3

300

9/7 = x/2

What is 2.57

400

x/3=10/3

What is 30

500

2/10=10/x

What is 50

Simple Proportions

100

3/6=5/x

What is 10

200

x/6=9/6

What is 15

300

5/4=x/5

6.25

400

2/x=10/20

What is 4

500

14/2=7/x

What is 1

Complex Proportions

100

n+7/7=4/9

-3.8

200

8/10= a+1/3

1.4

300

x-3/5=12/20

6

400

10/15=4/x-5

11

500

7/4=x-4/8

18

More Complex Proportions

100

x/3=3x+2/6

-2

200

w+3/7=w-1/8

-31

300

2x-1/3=c+2/4

2

400

14/3x+5=3/x

3

500

5/x=3/b-6

15

Word Problems

100

A dripping faucet wastes 3 cups of water every 24 hours. How much water is wasted in 168 hours?

21 cups

200

Stevenson's Market is selling 3 packs of stylus pens for $5. How much will 10 packs of stylus pens cost?

$16.67

300

Janet worked 12 hours for $102. At this rate, how much will she earn if she works 15 hours?

$127.50

400

It takes Steven 12 hours to complete some landscape work and make $78. How much would Steven make in 20 hours of work?

$130

500

The proportion of red marbles to blue marbles in a jar is 3 to 8. If there are 40 blue marbles in the jar, how many red marbles are there?

15