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Finding the Fourth Proportional to 8,771.59, 12,100.57 and 6,377.85

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Solution

The fourth proportional to 8,771.59, 12,100.57 and 6,377.85 is: 8,798.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,771.59 : 12,100.57 = 6,377.85 : x
  2. Step 2: Convert to fraction form
    8,771.59/12,100.57 = 6,377.85/x
  3. Step 3: Cross multiply
    8,771.59x = 12,100.57 × 6,377.85
  4. Step 4: Simplify right side
    8,771.59x = 77,175,604.43
  5. Step 5: Solve for x
    x = 77,175,604.43/8,771.59
  6. Step 6: Final answer
    x = 8,798.36

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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.