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Finding the Fourth Proportional to 8,755.80, 12,071.77 and 6,363.80

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Solution

The fourth proportional to 8,755.80, 12,071.77 and 6,363.80 is: 8,773.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755.80 : 12,071.77 = 6,363.80 : x
  2. Step 2: Convert to fraction form
    8,755.80/12,071.77 = 6,363.80/x
  3. Step 3: Cross multiply
    8,755.80x = 12,071.77 × 6,363.80
  4. Step 4: Simplify right side
    8,755.80x = 76,822,298.93
  5. Step 5: Solve for x
    x = 76,822,298.93/8,755.80
  6. Step 6: Final answer
    x = 8,773.88

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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.