Home / 15,339.62-22,999.17-12,381.70

Finding the Fourth Proportional to 15,339.62, 22,999.17 and 12,381.70

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Solution

The fourth proportional to 15,339.62, 22,999.17 and 12,381.70 is: 18,564.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,339.62 : 22,999.17 = 12,381.70 : x
  2. Step 2: Convert to fraction form
    15,339.62/22,999.17 = 12,381.70/x
  3. Step 3: Cross multiply
    15,339.62x = 22,999.17 × 12,381.70
  4. Step 4: Simplify right side
    15,339.62x = 284,768,823.19
  5. Step 5: Solve for x
    x = 284,768,823.19/15,339.62
  6. Step 6: Final answer
    x = 18,564.27

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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.