Home / 13,265.28-19,900.38-5,474.70

Finding the Fourth Proportional to 13,265.28, 19,900.38 and 5,474.70

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Solution

The fourth proportional to 13,265.28, 19,900.38 and 5,474.70 is: 8,213.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265.28 : 19,900.38 = 5,474.70 : x
  2. Step 2: Convert to fraction form
    13,265.28/19,900.38 = 5,474.70/x
  3. Step 3: Cross multiply
    13,265.28x = 19,900.38 × 5,474.70
  4. Step 4: Simplify right side
    13,265.28x = 108,948,610.39
  5. Step 5: Solve for x
    x = 108,948,610.39/13,265.28
  6. Step 6: Final answer
    x = 8,213.07

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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.