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Finding the Fourth Proportional to 8,878.12, 12,251.58 and 4,899.18

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Solution

The fourth proportional to 8,878.12, 12,251.58 and 4,899.18 is: 6,760.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,878.12 : 12,251.58 = 4,899.18 : x
  2. Step 2: Convert to fraction form
    8,878.12/12,251.58 = 4,899.18/x
  3. Step 3: Cross multiply
    8,878.12x = 12,251.58 × 4,899.18
  4. Step 4: Simplify right side
    8,878.12x = 60,022,695.70
  5. Step 5: Solve for x
    x = 60,022,695.70/8,878.12
  6. Step 6: Final answer
    x = 6,760.74

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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.