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Finding the Fourth Proportional to 8,903.20, 13,414.96 and 7,377.16

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Solution

The fourth proportional to 8,903.20, 13,414.96 and 7,377.16 is: 11,115.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,903.20 : 13,414.96 = 7,377.16 : x
  2. Step 2: Convert to fraction form
    8,903.20/13,414.96 = 7,377.16/x
  3. Step 3: Cross multiply
    8,903.20x = 13,414.96 × 7,377.16
  4. Step 4: Simplify right side
    8,903.20x = 98,964,306.31
  5. Step 5: Solve for x
    x = 98,964,306.31/8,903.20
  6. Step 6: Final answer
    x = 11,115.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.