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Finding the Fourth Proportional to 8,863.35, 12,229.16 and 5,505.90

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Solution

The fourth proportional to 8,863.35, 12,229.16 and 5,505.90 is: 7,596.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,863.35 : 12,229.16 = 5,505.90 : x
  2. Step 2: Convert to fraction form
    8,863.35/12,229.16 = 5,505.90/x
  3. Step 3: Cross multiply
    8,863.35x = 12,229.16 × 5,505.90
  4. Step 4: Simplify right side
    8,863.35x = 67,332,504.51
  5. Step 5: Solve for x
    x = 67,332,504.51/8,863.35
  6. Step 6: Final answer
    x = 7,596.73

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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.