Home / 13,861.30-20,788.89-3,998.44

Finding the Fourth Proportional to 13,861.30, 20,788.89 and 3,998.44

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Solution

The fourth proportional to 13,861.30, 20,788.89 and 3,998.44 is: 5,996.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,861.30 : 20,788.89 = 3,998.44 : x
  2. Step 2: Convert to fraction form
    13,861.30/20,788.89 = 3,998.44/x
  3. Step 3: Cross multiply
    13,861.30x = 20,788.89 × 3,998.44
  4. Step 4: Simplify right side
    13,861.30x = 83,123,129.33
  5. Step 5: Solve for x
    x = 83,123,129.33/13,861.30
  6. Step 6: Final answer
    x = 5,996.78

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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.