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Finding the Fourth Proportional to 8,861.82, 12,227.58 and 6,736.80

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Solution

The fourth proportional to 8,861.82, 12,227.58 and 6,736.80 is: 9,295.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,861.82 : 12,227.58 = 6,736.80 : x
  2. Step 2: Convert to fraction form
    8,861.82/12,227.58 = 6,736.80/x
  3. Step 3: Cross multiply
    8,861.82x = 12,227.58 × 6,736.80
  4. Step 4: Simplify right side
    8,861.82x = 82,374,760.94
  5. Step 5: Solve for x
    x = 82,374,760.94/8,861.82
  6. Step 6: Final answer
    x = 9,295.47

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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.