Home / 12,469.10-17,207.25-7,687.13

Finding the Fourth Proportional to 12,469.10, 17,207.25 and 7,687.13

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Solution

The fourth proportional to 12,469.10, 17,207.25 and 7,687.13 is: 10,608.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,469.10 : 17,207.25 = 7,687.13 : x
  2. Step 2: Convert to fraction form
    12,469.10/17,207.25 = 7,687.13/x
  3. Step 3: Cross multiply
    12,469.10x = 17,207.25 × 7,687.13
  4. Step 4: Simplify right side
    12,469.10x = 132,274,420.92
  5. Step 5: Solve for x
    x = 132,274,420.92/12,469.10
  6. Step 6: Final answer
    x = 10,608.17

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1.5x scale

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.