Home / 15,553.13-21,463.85-8,839.04

Finding the Fourth Proportional to 15,553.13, 21,463.85 and 8,839.04

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Solution

The fourth proportional to 15,553.13, 21,463.85 and 8,839.04 is: 12,198.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,553.13 : 21,463.85 = 8,839.04 : x
  2. Step 2: Convert to fraction form
    15,553.13/21,463.85 = 8,839.04/x
  3. Step 3: Cross multiply
    15,553.13x = 21,463.85 × 8,839.04
  4. Step 4: Simplify right side
    15,553.13x = 189,719,743.48
  5. Step 5: Solve for x
    x = 189,719,743.48/15,553.13
  6. Step 6: Final answer
    x = 12,198.18

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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.