Home / 13,937.18-20,905.68-3,407.27

Finding the Fourth Proportional to 13,937.18, 20,905.68 and 3,407.27

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Solution

The fourth proportional to 13,937.18, 20,905.68 and 3,407.27 is: 5,110.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,937.18 : 20,905.68 = 3,407.27 : x
  2. Step 2: Convert to fraction form
    13,937.18/20,905.68 = 3,407.27/x
  3. Step 3: Cross multiply
    13,937.18x = 20,905.68 × 3,407.27
  4. Step 4: Simplify right side
    13,937.18x = 71,231,191.77
  5. Step 5: Solve for x
    x = 71,231,191.77/13,937.18
  6. Step 6: Final answer
    x = 5,110.88

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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.