Finding the Fourth Proportional to 11.50, 15.94 and 11.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11.50 : 15.94 = 11.25 : x
2. Step 2: Convert to fraction form
   11.50/15.94 = 11.25/x
3. Step 3: Cross multiply
   11.50x = 15.94 × 11.25
4. Step 4: Simplify right side
   11.50x = 179.33
5. Step 5: Solve for x
   x = 179.33/11.50
6. Step 6: Final answer
   x = 15.59