Home / 16,115.88-22,239.65-8,945.79

Finding the Fourth Proportional to 16,115.88, 22,239.65 and 8,945.79

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Solution

The fourth proportional to 16,115.88, 22,239.65 and 8,945.79 is: 12,345.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,115.88 : 22,239.65 = 8,945.79 : x
  2. Step 2: Convert to fraction form
    16,115.88/22,239.65 = 8,945.79/x
  3. Step 3: Cross multiply
    16,115.88x = 22,239.65 × 8,945.79
  4. Step 4: Simplify right side
    16,115.88x = 198,951,177.54
  5. Step 5: Solve for x
    x = 198,951,177.54/16,115.88
  6. Step 6: Final answer
    x = 12,345.04

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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.