Question

A wall map is 45 cm high and 27 cm wide. Ashley wants to proportionately shrink it so its height is 12 cm. How wide would it be then?

Answer 1

7.2 cm wide

Explanation:

Set it up as a proportion.. (45/27) = (12/x)

Cross multiply and solve for x.

Answer 2

To shrink the height it has to be shrunk by:

27 / x = 12

x = 2.25 times

The width would be 45 / 2.25 =

20 centimeters.

Explanation: