Home / 13,419.73-20,125.04-5,097.74

Finding the Fourth Proportional to 13,419.73, 20,125.04 and 5,097.74

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Solution

The fourth proportional to 13,419.73, 20,125.04 and 5,097.74 is: 7,644.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,419.73 : 20,125.04 = 5,097.74 : x
  2. Step 2: Convert to fraction form
    13,419.73/20,125.04 = 5,097.74/x
  3. Step 3: Cross multiply
    13,419.73x = 20,125.04 × 5,097.74
  4. Step 4: Simplify right side
    13,419.73x = 102,592,221.41
  5. Step 5: Solve for x
    x = 102,592,221.41/13,419.73
  6. Step 6: Final answer
    x = 7,644.88

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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.