To express the given statement as an inequality, let's first define the variable \( x \) to represent the unknown number. According to the problem, the sum of 11 and three-fourths of this number is less than 112.
We can express this as:
\[ \frac{3}{4}x + 11 < 112 \]
Thus, the inequality that can be used to solve the problem is:
\[ \frac{3}{4}x + 11 < 112 \]