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Finding the Fourth Proportional to 12,424.92, 17,096.04 and 12,129.54

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Solution

The fourth proportional to 12,424.92, 17,096.04 and 12,129.54 is: 16,689.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,424.92 : 17,096.04 = 12,129.54 : x
  2. Step 2: Convert to fraction form
    12,424.92/17,096.04 = 12,129.54/x
  3. Step 3: Cross multiply
    12,424.92x = 17,096.04 × 12,129.54
  4. Step 4: Simplify right side
    12,424.92x = 207,367,101.02
  5. Step 5: Solve for x
    x = 207,367,101.02/12,424.92
  6. Step 6: Final answer
    x = 16,689.61

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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.