Home / 11,992.92-16,550.20-6,687.74

Finding the Fourth Proportional to 11,992.92, 16,550.20 and 6,687.74

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Solution

The fourth proportional to 11,992.92, 16,550.20 and 6,687.74 is: 9,229.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,992.92 : 16,550.20 = 6,687.74 : x
  2. Step 2: Convert to fraction form
    11,992.92/16,550.20 = 6,687.74/x
  3. Step 3: Cross multiply
    11,992.92x = 16,550.20 × 6,687.74
  4. Step 4: Simplify right side
    11,992.92x = 110,683,418.93
  5. Step 5: Solve for x
    x = 110,683,418.93/11,992.92
  6. Step 6: Final answer
    x = 9,229.06

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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.