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Finding the Fourth Proportional to 7,624.40, 11,418.84 and 7,414.20

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Solution

The fourth proportional to 7,624.40, 11,418.84 and 7,414.20 is: 11,104.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,624.40 : 11,418.84 = 7,414.20 : x
  2. Step 2: Convert to fraction form
    7,624.40/11,418.84 = 7,414.20/x
  3. Step 3: Cross multiply
    7,624.40x = 11,418.84 × 7,414.20
  4. Step 4: Simplify right side
    7,624.40x = 84,661,563.53
  5. Step 5: Solve for x
    x = 84,661,563.53/7,624.40
  6. Step 6: Final answer
    x = 11,104.04

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