Home / 12,216.12-18,325.16-3,451.72

Finding the Fourth Proportional to 12,216.12, 18,325.16 and 3,451.72

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Solution

The fourth proportional to 12,216.12, 18,325.16 and 3,451.72 is: 5,177.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.12 : 18,325.16 = 3,451.72 : x
  2. Step 2: Convert to fraction form
    12,216.12/18,325.16 = 3,451.72/x
  3. Step 3: Cross multiply
    12,216.12x = 18,325.16 × 3,451.72
  4. Step 4: Simplify right side
    12,216.12x = 63,253,321.28
  5. Step 5: Solve for x
    x = 63,253,321.28/12,216.12
  6. Step 6: Final answer
    x = 5,177.86

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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.