Home / 12,115.24-18,177.66-4,721.92

Finding the Fourth Proportional to 12,115.24, 18,177.66 and 4,721.92

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Solution

The fourth proportional to 12,115.24, 18,177.66 and 4,721.92 is: 7,084.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115.24 : 18,177.66 = 4,721.92 : x
  2. Step 2: Convert to fraction form
    12,115.24/18,177.66 = 4,721.92/x
  3. Step 3: Cross multiply
    12,115.24x = 18,177.66 × 4,721.92
  4. Step 4: Simplify right side
    12,115.24x = 85,833,456.31
  5. Step 5: Solve for x
    x = 85,833,456.31/12,115.24
  6. Step 6: Final answer
    x = 7,084.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.