Home / 8,747.57-13,120.12-2,508.11

Finding the Fourth Proportional to 8,747.57, 13,120.12 and 2,508.11

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Solution

The fourth proportional to 8,747.57, 13,120.12 and 2,508.11 is: 3,761.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.57 : 13,120.12 = 2,508.11 : x
  2. Step 2: Convert to fraction form
    8,747.57/13,120.12 = 2,508.11/x
  3. Step 3: Cross multiply
    8,747.57x = 13,120.12 × 2,508.11
  4. Step 4: Simplify right side
    8,747.57x = 32,906,691.63
  5. Step 5: Solve for x
    x = 32,906,691.63/8,747.57
  6. Step 6: Final answer
    x = 3,761.81

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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.