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Finding the Fourth Proportional to 18,294.20, 25,245.99 and 9,910.70

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Solution

The fourth proportional to 18,294.20, 25,245.99 and 9,910.70 is: 13,676.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,294.20 : 25,245.99 = 9,910.70 : x
  2. Step 2: Convert to fraction form
    18,294.20/25,245.99 = 9,910.70/x
  3. Step 3: Cross multiply
    18,294.20x = 25,245.99 × 9,910.70
  4. Step 4: Simplify right side
    18,294.20x = 250,205,306.86
  5. Step 5: Solve for x
    x = 250,205,306.86/18,294.20
  6. Step 6: Final answer
    x = 13,676.76

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.