Home / 11,917.95-16,446.90-6,612.86

Finding the Fourth Proportional to 11,917.95, 16,446.90 and 6,612.86

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Solution

The fourth proportional to 11,917.95, 16,446.90 and 6,612.86 is: 9,125.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,917.95 : 16,446.90 = 6,612.86 : x
  2. Step 2: Convert to fraction form
    11,917.95/16,446.90 = 6,612.86/x
  3. Step 3: Cross multiply
    11,917.95x = 16,446.90 × 6,612.86
  4. Step 4: Simplify right side
    11,917.95x = 108,760,964.90
  5. Step 5: Solve for x
    x = 108,760,964.90/11,917.95
  6. Step 6: Final answer
    x = 9,125.81

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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.