Home / 12,239.42-16,874.04-9,729.86

Finding the Fourth Proportional to 12,239.42, 16,874.04 and 9,729.86

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Solution

The fourth proportional to 12,239.42, 16,874.04 and 9,729.86 is: 13,414.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.42 : 16,874.04 = 9,729.86 : x
  2. Step 2: Convert to fraction form
    12,239.42/16,874.04 = 9,729.86/x
  3. Step 3: Cross multiply
    12,239.42x = 16,874.04 × 9,729.86
  4. Step 4: Simplify right side
    12,239.42x = 164,182,046.83
  5. Step 5: Solve for x
    x = 164,182,046.83/12,239.42
  6. Step 6: Final answer
    x = 13,414.20

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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.