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Finding the Fourth Proportional to 8,701.98, 12,008.78 and 4,723.10

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Solution

The fourth proportional to 8,701.98, 12,008.78 and 4,723.10 is: 6,517.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,701.98 : 12,008.78 = 4,723.10 : x
  2. Step 2: Convert to fraction form
    8,701.98/12,008.78 = 4,723.10/x
  3. Step 3: Cross multiply
    8,701.98x = 12,008.78 × 4,723.10
  4. Step 4: Simplify right side
    8,701.98x = 56,718,645.20
  5. Step 5: Solve for x
    x = 56,718,645.20/8,701.98
  6. Step 6: Final answer
    x = 6,517.90

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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.