Proportionality: The term proportionality describes any relationship that is always in the same ratio. It is express as :
x = ky, where k is the proportionality constant
Shoes Size are proportional to the length of the shoes
Shoes Size = K (Length of the shoes)
From the given data
1) Shoes size = 37, Length of shoes =9.25
So, equation will be : 37 = k (9.25)
Simplify the equation:
[tex]\begin{gathered} 37\text{ = k(9.25)} \\ k=\frac{37}{9.25} \\ k=4 \end{gathered}[/tex]So, proportionality constant is 4
Answer: Proportionality constant = 4