ANSWER
Yes, they form a proportion
EXPLANATION
A proportion is a statement that two ratios are equal.
We have to check if the next equality is true:
[tex]\frac{4}{11}=\frac{10}{27.5}[/tex]Instead of doing the divisions, we can do multiplications:
[tex]\begin{gathered} 4\times27.5=10\times11 \\ 110=110\text{ }\rightarrow\text{ true} \end{gathered}[/tex]These ratios are equal, so they form a proportion
