Home / 13,531.60-20,305.50-4,773.88

Finding the Fourth Proportional to 13,531.60, 20,305.50 and 4,773.88

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Solution

The fourth proportional to 13,531.60, 20,305.50 and 4,773.88 is: 7,163.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,531.60 : 20,305.50 = 4,773.88 : x
  2. Step 2: Convert to fraction form
    13,531.60/20,305.50 = 4,773.88/x
  3. Step 3: Cross multiply
    13,531.60x = 20,305.50 × 4,773.88
  4. Step 4: Simplify right side
    13,531.60x = 96,936,020.34
  5. Step 5: Solve for x
    x = 96,936,020.34/13,531.60
  6. Step 6: Final answer
    x = 7,163.68

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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.