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Finding the Fourth Proportional to 8,818.60, 13,227.90 and 3,885.70

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Solution

The fourth proportional to 8,818.60, 13,227.90 and 3,885.70 is: 5,828.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,818.60 : 13,227.90 = 3,885.70 : x
  2. Step 2: Convert to fraction form
    8,818.60/13,227.90 = 3,885.70/x
  3. Step 3: Cross multiply
    8,818.60x = 13,227.90 × 3,885.70
  4. Step 4: Simplify right side
    8,818.60x = 51,399,651.03
  5. Step 5: Solve for x
    x = 51,399,651.03/8,818.60
  6. Step 6: Final answer
    x = 5,828.55

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.