Home / 11,129.13-16,691.06-3,229.54

Finding the Fourth Proportional to 11,129.13, 16,691.06 and 3,229.54

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Solution

The fourth proportional to 11,129.13, 16,691.06 and 3,229.54 is: 4,843.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,129.13 : 16,691.06 = 3,229.54 : x
  2. Step 2: Convert to fraction form
    11,129.13/16,691.06 = 3,229.54/x
  3. Step 3: Cross multiply
    11,129.13x = 16,691.06 × 3,229.54
  4. Step 4: Simplify right side
    11,129.13x = 53,904,412.26
  5. Step 5: Solve for x
    x = 53,904,412.26/11,129.13
  6. Step 6: Final answer
    x = 4,843.54

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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.