Home / 11,209.27-15,469.56-7,425.90

Finding the Fourth Proportional to 11,209.27, 15,469.56 and 7,425.90

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Solution

The fourth proportional to 11,209.27, 15,469.56 and 7,425.90 is: 10,248.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209.27 : 15,469.56 = 7,425.90 : x
  2. Step 2: Convert to fraction form
    11,209.27/15,469.56 = 7,425.90/x
  3. Step 3: Cross multiply
    11,209.27x = 15,469.56 × 7,425.90
  4. Step 4: Simplify right side
    11,209.27x = 114,875,405.60
  5. Step 5: Solve for x
    x = 114,875,405.60/11,209.27
  6. Step 6: Final answer
    x = 10,248.25

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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.