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Finding the Fourth Proportional to 17,107.22, 25,660.82 and 12,456.82

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Solution

The fourth proportional to 17,107.22, 25,660.82 and 12,456.82 is: 18,685.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,107.22 : 25,660.82 = 12,456.82 : x
  2. Step 2: Convert to fraction form
    17,107.22/25,660.82 = 12,456.82/x
  3. Step 3: Cross multiply
    17,107.22x = 25,660.82 × 12,456.82
  4. Step 4: Simplify right side
    17,107.22x = 319,652,025.20
  5. Step 5: Solve for x
    x = 319,652,025.20/17,107.22
  6. Step 6: Final answer
    x = 18,685.22

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1.5x scale

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.