Home / 8,691.20-13,028.88-3,493.52

Finding the Fourth Proportional to 8,691.20, 13,028.88 and 3,493.52

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Solution

The fourth proportional to 8,691.20, 13,028.88 and 3,493.52 is: 5,237.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,691.20 : 13,028.88 = 3,493.52 : x
  2. Step 2: Convert to fraction form
    8,691.20/13,028.88 = 3,493.52/x
  3. Step 3: Cross multiply
    8,691.20x = 13,028.88 × 3,493.52
  4. Step 4: Simplify right side
    8,691.20x = 45,516,652.86
  5. Step 5: Solve for x
    x = 45,516,652.86/8,691.20
  6. Step 6: Final answer
    x = 5,237.10

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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.