Home / 12,227.88-18,341.61-3,907.85

Finding the Fourth Proportional to 12,227.88, 18,341.61 and 3,907.85

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Solution

The fourth proportional to 12,227.88, 18,341.61 and 3,907.85 is: 5,861.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,227.88 : 18,341.61 = 3,907.85 : x
  2. Step 2: Convert to fraction form
    12,227.88/18,341.61 = 3,907.85/x
  3. Step 3: Cross multiply
    12,227.88x = 18,341.61 × 3,907.85
  4. Step 4: Simplify right side
    12,227.88x = 71,676,168.93
  5. Step 5: Solve for x
    x = 71,676,168.93/12,227.88
  6. Step 6: Final answer
    x = 5,861.70

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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.