. Leslie is blowing up one of her favorite photographs to hang on her wall. If the photo's original length and height were 8 inches and 15 inches, and the new height is 4 feet, how many feet must the new picture be

The new picture must be feet or 2.1334 feet in length.

We know,

Given to us:

Initial length, ;

Initial height, ;

Final height, ;

We know that a when a picture is blown up(enlarged), it is always done in a specific ratio, therefore

Ratio,

So,

,

Hence, the new picture must be feet or 2.1334 feet in length.

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Step-by-step explanation:

Given

Original

New

Required

Determine the new length (L2)

Since the original photographs was blown up; the original and the new photographs would have the same ratio

i.e.

and

Equate both ratios

Rewrite as fraction

Substitute values for L1, H1 and H2

Multiply both sides by 4

The new length must be