Home / 15,348.38-21,181-9,060.76

Finding the Fourth Proportional to 15,348.38, 21,181 and 9,060.76

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Solution

The fourth proportional to 15,348.38, 21,181 and 9,060.76 is: 12,503.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,348.38 : 21,181 = 9,060.76 : x
  2. Step 2: Convert to fraction form
    15,348.38/21,181 = 9,060.76/x
  3. Step 3: Cross multiply
    15,348.38x = 21,181 × 9,060.76
  4. Step 4: Simplify right side
    15,348.38x = 191,915,957.56
  5. Step 5: Solve for x
    x = 191,915,957.56/15,348.38
  6. Step 6: Final answer
    x = 12,503.99

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1.5x scale

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.