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Finding the Fourth Proportional to 8,753.75, 12,079.97 and 4,774.89

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Solution

The fourth proportional to 8,753.75, 12,079.97 and 4,774.89 is: 6,589.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,753.75 : 12,079.97 = 4,774.89 : x
  2. Step 2: Convert to fraction form
    8,753.75/12,079.97 = 4,774.89/x
  3. Step 3: Cross multiply
    8,753.75x = 12,079.97 × 4,774.89
  4. Step 4: Simplify right side
    8,753.75x = 57,680,567.28
  5. Step 5: Solve for x
    x = 57,680,567.28/8,753.75
  6. Step 6: Final answer
    x = 6,589.24

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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.