Solving Proportions

Front

A proportion is a

Back

a statement of 2 ratios that are equal to each other

Front

Solve the proportion: 10/15 = x/25

Back

15

Front

Solve the proportion: 3/4 = x/16

Back

12

Front

Equivalent means.....

Back

equal

Front

Solve the proportion: 5/8 = x/32

Back

20

Front

What is a ratio?

Back

A comparison of two quantities.

Front

If a/b = c/d, what is the cross product?

Back

a*d = b*c

Front

Solve the proportion: 7/x = 14/28

Back

x = 4

Front

What is the first step in solving a proportion?

Back

Cross-multiply the ratios.

Front

Solve the proportion: x/9 = 3/12

Back

x = 2.25