Home / 11,691.27-17,537.85-3,900.11

Finding the Fourth Proportional to 11,691.27, 17,537.85 and 3,900.11

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Solution

The fourth proportional to 11,691.27, 17,537.85 and 3,900.11 is: 5,850.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,691.27 : 17,537.85 = 3,900.11 : x
  2. Step 2: Convert to fraction form
    11,691.27/17,537.85 = 3,900.11/x
  3. Step 3: Cross multiply
    11,691.27x = 17,537.85 × 3,900.11
  4. Step 4: Simplify right side
    11,691.27x = 68,399,456.47
  5. Step 5: Solve for x
    x = 68,399,456.47/11,691.27
  6. Step 6: Final answer
    x = 5,850.47

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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.