Home / 12,469.28-17,209.31-7,163.97

Finding the Fourth Proportional to 12,469.28, 17,209.31 and 7,163.97

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Solution

The fourth proportional to 12,469.28, 17,209.31 and 7,163.97 is: 9,887.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,469.28 : 17,209.31 = 7,163.97 : x
  2. Step 2: Convert to fraction form
    12,469.28/17,209.31 = 7,163.97/x
  3. Step 3: Cross multiply
    12,469.28x = 17,209.31 × 7,163.97
  4. Step 4: Simplify right side
    12,469.28x = 123,286,944.74
  5. Step 5: Solve for x
    x = 123,286,944.74/12,469.28
  6. Step 6: Final answer
    x = 9,887.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.