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Finding the Fourth Proportional to 13,773.73, 20,654.44 and 3,910.70

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Solution

The fourth proportional to 13,773.73, 20,654.44 and 3,910.70 is: 5,864.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,773.73 : 20,654.44 = 3,910.70 : x
  2. Step 2: Convert to fraction form
    13,773.73/20,654.44 = 3,910.70/x
  3. Step 3: Cross multiply
    13,773.73x = 20,654.44 × 3,910.70
  4. Step 4: Simplify right side
    13,773.73x = 80,773,205.46
  5. Step 5: Solve for x
    x = 80,773,205.46/13,773.73
  6. Step 6: Final answer
    x = 5,864.30

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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.