Home / 13,572.14-20,358.50-3,711.36

Finding the Fourth Proportional to 13,572.14, 20,358.50 and 3,711.36

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Solution

The fourth proportional to 13,572.14, 20,358.50 and 3,711.36 is: 5,567.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.14 : 20,358.50 = 3,711.36 : x
  2. Step 2: Convert to fraction form
    13,572.14/20,358.50 = 3,711.36/x
  3. Step 3: Cross multiply
    13,572.14x = 20,358.50 × 3,711.36
  4. Step 4: Simplify right side
    13,572.14x = 75,557,704.00
  5. Step 5: Solve for x
    x = 75,557,704.00/13,572.14
  6. Step 6: Final answer
    x = 5,567.12

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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.