Home / 12,124.98-18,195.82-4,227.56

Finding the Fourth Proportional to 12,124.98, 18,195.82 and 4,227.56

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Solution

The fourth proportional to 12,124.98, 18,195.82 and 4,227.56 is: 6,344.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.98 : 18,195.82 = 4,227.56 : x
  2. Step 2: Convert to fraction form
    12,124.98/18,195.82 = 4,227.56/x
  3. Step 3: Cross multiply
    12,124.98x = 18,195.82 × 4,227.56
  4. Step 4: Simplify right side
    12,124.98x = 76,923,920.80
  5. Step 5: Solve for x
    x = 76,923,920.80/12,124.98
  6. Step 6: Final answer
    x = 6,344.25

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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.