Home / 9.96-13.74-8.15

Finding the Fourth Proportional to 9.96, 13.74 and 8.15

Calculator

Solution

The fourth proportional to 9.96, 13.74 and 8.15 is: 11.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    9.96 : 13.74 = 8.15 : x
  2. Step 2: Convert to fraction form
    9.96/13.74 = 8.15/x
  3. Step 3: Cross multiply
    9.96x = 13.74 × 8.15
  4. Step 4: Simplify right side
    9.96x = 111.91
  5. Step 5: Solve for x
    x = 111.91/9.96
  6. Step 6: Final answer
    x = 11.24

Related Problems

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.