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Finding the Fourth Proportional to 15,144.17, 22,718.97 and 5,149.85

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Solution

The fourth proportional to 15,144.17, 22,718.97 and 5,149.85 is: 7,725.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,144.17 : 22,718.97 = 5,149.85 : x
  2. Step 2: Convert to fraction form
    15,144.17/22,718.97 = 5,149.85/x
  3. Step 3: Cross multiply
    15,144.17x = 22,718.97 × 5,149.85
  4. Step 4: Simplify right side
    15,144.17x = 116,999,287.65
  5. Step 5: Solve for x
    x = 116,999,287.65/15,144.17
  6. Step 6: Final answer
    x = 7,725.70

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1.5x scale

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.