Home / 15,839.30-21,857.96-9,124.91

Finding the Fourth Proportional to 15,839.30, 21,857.96 and 9,124.91

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Solution

The fourth proportional to 15,839.30, 21,857.96 and 9,124.91 is: 12,592.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,839.30 : 21,857.96 = 9,124.91 : x
  2. Step 2: Convert to fraction form
    15,839.30/21,857.96 = 9,124.91/x
  3. Step 3: Cross multiply
    15,839.30x = 21,857.96 × 9,124.91
  4. Step 4: Simplify right side
    15,839.30x = 199,451,872.16
  5. Step 5: Solve for x
    x = 199,451,872.16/15,839.30
  6. Step 6: Final answer
    x = 12,592.22

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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.