Home / 12,163.72-18,244.20-3,843.76

Finding the Fourth Proportional to 12,163.72, 18,244.20 and 3,843.76

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Solution

The fourth proportional to 12,163.72, 18,244.20 and 3,843.76 is: 5,765.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.72 : 18,244.20 = 3,843.76 : x
  2. Step 2: Convert to fraction form
    12,163.72/18,244.20 = 3,843.76/x
  3. Step 3: Cross multiply
    12,163.72x = 18,244.20 × 3,843.76
  4. Step 4: Simplify right side
    12,163.72x = 70,126,326.19
  5. Step 5: Solve for x
    x = 70,126,326.19/12,163.72
  6. Step 6: Final answer
    x = 5,765.20

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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.