Scale Factor of 15 and 5

What is the Scale Factor of 15 and 5? What is the Scale Factor between 15 and 5? More specifically, what is the Scale Factor from a length of 15 to a length of 5? In other words, what (Scale Factor) can you multiply by 15 to get 5 as illustrated below?:

15 × Scale Factor = 5

To solve the equation above, you simply divide both sides by 15 to get the Scale Factor alone on the left side:

(15 × Scale Factor)/15 = 5/15
Scale Factor = 5/15

We could leave the answer like that, but we have also converted the answer to its simplest fraction form and to decimal form:

Fraction answer = 1/3
Decimal answer ≈ 0.333333

You may also be interested to know that we verified that 15 × 1/3 = 5 is true, which means that our answer is correct. Also, note that since 15 is greater than 5, this is a Reduction Scale Factor.

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