Home / 18,553.22-27,836-12,337.70

Finding the Fourth Proportional to 18,553.22, 27,836 and 12,337.70

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Solution

The fourth proportional to 18,553.22, 27,836 and 12,337.70 is: 18,510.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,553.22 : 27,836 = 12,337.70 : x
  2. Step 2: Convert to fraction form
    18,553.22/27,836 = 12,337.70/x
  3. Step 3: Cross multiply
    18,553.22x = 27,836 × 12,337.70
  4. Step 4: Simplify right side
    18,553.22x = 343,432,217.20
  5. Step 5: Solve for x
    x = 343,432,217.20/18,553.22
  6. Step 6: Final answer
    x = 18,510.65

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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.