Home / 13,349.82-20,025.68-3,989.73

Finding the Fourth Proportional to 13,349.82, 20,025.68 and 3,989.73

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Solution

The fourth proportional to 13,349.82, 20,025.68 and 3,989.73 is: 5,984.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.82 : 20,025.68 = 3,989.73 : x
  2. Step 2: Convert to fraction form
    13,349.82/20,025.68 = 3,989.73/x
  3. Step 3: Cross multiply
    13,349.82x = 20,025.68 × 3,989.73
  4. Step 4: Simplify right side
    13,349.82x = 79,897,036.32
  5. Step 5: Solve for x
    x = 79,897,036.32/13,349.82
  6. Step 6: Final answer
    x = 5,984.88

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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.