Home / 18,330.50-25,296.10-9,947

Finding the Fourth Proportional to 18,330.50, 25,296.10 and 9,947

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Solution

The fourth proportional to 18,330.50, 25,296.10 and 9,947 is: 13,726.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,330.50 : 25,296.10 = 9,947 : x
  2. Step 2: Convert to fraction form
    18,330.50/25,296.10 = 9,947/x
  3. Step 3: Cross multiply
    18,330.50x = 25,296.10 × 9,947
  4. Step 4: Simplify right side
    18,330.50x = 251,620,306.70
  5. Step 5: Solve for x
    x = 251,620,306.70/18,330.50
  6. Step 6: Final answer
    x = 13,726.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.