Home / 11,136.29-16,707.17-5,129.55

Finding the Fourth Proportional to 11,136.29, 16,707.17 and 5,129.55

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Solution

The fourth proportional to 11,136.29, 16,707.17 and 5,129.55 is: 7,695.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136.29 : 16,707.17 = 5,129.55 : x
  2. Step 2: Convert to fraction form
    11,136.29/16,707.17 = 5,129.55/x
  3. Step 3: Cross multiply
    11,136.29x = 16,707.17 × 5,129.55
  4. Step 4: Simplify right side
    11,136.29x = 85,700,276.70
  5. Step 5: Solve for x
    x = 85,700,276.70/11,136.29
  6. Step 6: Final answer
    x = 7,695.59

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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.