Home / 10,931.12-15,081.17-6,150.30

Finding the Fourth Proportional to 10,931.12, 15,081.17 and 6,150.30

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Solution

The fourth proportional to 10,931.12, 15,081.17 and 6,150.30 is: 8,485.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,931.12 : 15,081.17 = 6,150.30 : x
  2. Step 2: Convert to fraction form
    10,931.12/15,081.17 = 6,150.30/x
  3. Step 3: Cross multiply
    10,931.12x = 15,081.17 × 6,150.30
  4. Step 4: Simplify right side
    10,931.12x = 92,753,689.10
  5. Step 5: Solve for x
    x = 92,753,689.10/10,931.12
  6. Step 6: Final answer
    x = 8,485.29

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1.5x scale

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.