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Finding the Fourth Proportional to 8,788.72, 12,122.84 and 6,135.16

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Solution

The fourth proportional to 8,788.72, 12,122.84 and 6,135.16 is: 8,462.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,788.72 : 12,122.84 = 6,135.16 : x
  2. Step 2: Convert to fraction form
    8,788.72/12,122.84 = 6,135.16/x
  3. Step 3: Cross multiply
    8,788.72x = 12,122.84 × 6,135.16
  4. Step 4: Simplify right side
    8,788.72x = 74,375,532.38
  5. Step 5: Solve for x
    x = 74,375,532.38/8,788.72
  6. Step 6: Final answer
    x = 8,462.61

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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.