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Finding the Fourth Proportional to 12,617.11, 17,398.42 and 9,425.41

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Solution

The fourth proportional to 12,617.11, 17,398.42 and 9,425.41 is: 12,997.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,617.11 : 17,398.42 = 9,425.41 : x
  2. Step 2: Convert to fraction form
    12,617.11/17,398.42 = 9,425.41/x
  3. Step 3: Cross multiply
    12,617.11x = 17,398.42 × 9,425.41
  4. Step 4: Simplify right side
    12,617.11x = 163,987,241.85
  5. Step 5: Solve for x
    x = 163,987,241.85/12,617.11
  6. Step 6: Final answer
    x = 12,997.21

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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.