Home / 12,229.42-16,874.92-7,190.68

Finding the Fourth Proportional to 12,229.42, 16,874.92 and 7,190.68

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Solution

The fourth proportional to 12,229.42, 16,874.92 and 7,190.68 is: 9,922.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,229.42 : 16,874.92 = 7,190.68 : x
  2. Step 2: Convert to fraction form
    12,229.42/16,874.92 = 7,190.68/x
  3. Step 3: Cross multiply
    12,229.42x = 16,874.92 × 7,190.68
  4. Step 4: Simplify right side
    12,229.42x = 121,342,149.75
  5. Step 5: Solve for x
    x = 121,342,149.75/12,229.42
  6. Step 6: Final answer
    x = 9,922.15

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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.