Math
posted by Lana
A rectangle has a width of 10 in and a length of 12 in. A similar rectangle has a width of 15 in. What is the length of the similar rectangle?

Arora
The lengths of both edges in similar rectangles have equal ratios.
=> (Length 1)/(Length 2) = (Width 1)/(Width 2)
=> 12/x = 10/15
=> x = (12*15)/10
Solve for x. 
Arora
The lengths of both edges in similar rectangles have equal ratios.
=> (Length 1)/(Length 2) = (Width 1)/(Width 2)
=> 12/x = 10/15
=> x = (12*15)/10
Solve for x.
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