Home / 11,129.92-16,696.50-3,732.72

Finding the Fourth Proportional to 11,129.92, 16,696.50 and 3,732.72

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Solution

The fourth proportional to 11,129.92, 16,696.50 and 3,732.72 is: 5,599.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,129.92 : 16,696.50 = 3,732.72 : x
  2. Step 2: Convert to fraction form
    11,129.92/16,696.50 = 3,732.72/x
  3. Step 3: Cross multiply
    11,129.92x = 16,696.50 × 3,732.72
  4. Step 4: Simplify right side
    11,129.92x = 62,323,359.48
  5. Step 5: Solve for x
    x = 62,323,359.48/11,129.92
  6. Step 6: Final answer
    x = 5,599.62

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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.