Home / 12,255.86-18,375.28-6,711.82

Finding the Fourth Proportional to 12,255.86, 18,375.28 and 6,711.82

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Solution

The fourth proportional to 12,255.86, 18,375.28 and 6,711.82 is: 10,063.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,255.86 : 18,375.28 = 6,711.82 : x
  2. Step 2: Convert to fraction form
    12,255.86/18,375.28 = 6,711.82/x
  3. Step 3: Cross multiply
    12,255.86x = 18,375.28 × 6,711.82
  4. Step 4: Simplify right side
    12,255.86x = 123,331,571.81
  5. Step 5: Solve for x
    x = 123,331,571.81/12,255.86
  6. Step 6: Final answer
    x = 10,063.07

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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.