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Finding the Fourth Proportional to 10,610.65, 15,915.98 and 5,067.90

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Solution

The fourth proportional to 10,610.65, 15,915.98 and 5,067.90 is: 7,601.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,610.65 : 15,915.98 = 5,067.90 : x
  2. Step 2: Convert to fraction form
    10,610.65/15,915.98 = 5,067.90/x
  3. Step 3: Cross multiply
    10,610.65x = 15,915.98 × 5,067.90
  4. Step 4: Simplify right side
    10,610.65x = 80,660,595.04
  5. Step 5: Solve for x
    x = 80,660,595.04/10,610.65
  6. Step 6: Final answer
    x = 7,601.85

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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.