Home / 15,144.72-22,734.12-6,387

Finding the Fourth Proportional to 15,144.72, 22,734.12 and 6,387

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Solution

The fourth proportional to 15,144.72, 22,734.12 and 6,387 is: 9,587.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,144.72 : 22,734.12 = 6,387 : x
  2. Step 2: Convert to fraction form
    15,144.72/22,734.12 = 6,387/x
  3. Step 3: Cross multiply
    15,144.72x = 22,734.12 × 6,387
  4. Step 4: Simplify right side
    15,144.72x = 145,202,824.44
  5. Step 5: Solve for x
    x = 145,202,824.44/15,144.72
  6. Step 6: Final answer
    x = 9,587.69

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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.