Home / 26,505.18-39,697.29-12,663.90

Finding the Fourth Proportional to 26,505.18, 39,697.29 and 12,663.90

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Solution

The fourth proportional to 26,505.18, 39,697.29 and 12,663.90 is: 18,966.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,505.18 : 39,697.29 = 12,663.90 : x
  2. Step 2: Convert to fraction form
    26,505.18/39,697.29 = 12,663.90/x
  3. Step 3: Cross multiply
    26,505.18x = 39,697.29 × 12,663.90
  4. Step 4: Simplify right side
    26,505.18x = 502,722,510.83
  5. Step 5: Solve for x
    x = 502,722,510.83/26,505.18
  6. Step 6: Final answer
    x = 18,966.95

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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.