Home / 12,116.11-18,176.60-4,324.72

Finding the Fourth Proportional to 12,116.11, 18,176.60 and 4,324.72

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Solution

The fourth proportional to 12,116.11, 18,176.60 and 4,324.72 is: 6,487.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,116.11 : 18,176.60 = 4,324.72 : x
  2. Step 2: Convert to fraction form
    12,116.11/18,176.60 = 4,324.72/x
  3. Step 3: Cross multiply
    12,116.11x = 18,176.60 × 4,324.72
  4. Step 4: Simplify right side
    12,116.11x = 78,608,716.36
  5. Step 5: Solve for x
    x = 78,608,716.36/12,116.11
  6. Step 6: Final answer
    x = 6,487.95

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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.