Home / 12,217.30-18,325.14-3,453.10

Finding the Fourth Proportional to 12,217.30, 18,325.14 and 3,453.10

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Solution

The fourth proportional to 12,217.30, 18,325.14 and 3,453.10 is: 5,179.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,217.30 : 18,325.14 = 3,453.10 : x
  2. Step 2: Convert to fraction form
    12,217.30/18,325.14 = 3,453.10/x
  3. Step 3: Cross multiply
    12,217.30x = 18,325.14 × 3,453.10
  4. Step 4: Simplify right side
    12,217.30x = 63,278,540.93
  5. Step 5: Solve for x
    x = 63,278,540.93/12,217.30
  6. Step 6: Final answer
    x = 5,179.42

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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.