Home / 10,691.76-16,026.30-4,115.10

Finding the Fourth Proportional to 10,691.76, 16,026.30 and 4,115.10

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Solution

The fourth proportional to 10,691.76, 16,026.30 and 4,115.10 is: 6,168.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,691.76 : 16,026.30 = 4,115.10 : x
  2. Step 2: Convert to fraction form
    10,691.76/16,026.30 = 4,115.10/x
  3. Step 3: Cross multiply
    10,691.76x = 16,026.30 × 4,115.10
  4. Step 4: Simplify right side
    10,691.76x = 65,949,827.13
  5. Step 5: Solve for x
    x = 65,949,827.13/10,691.76
  6. Step 6: Final answer
    x = 6,168.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.