Home / 12,195.92-18,294.39-4,299.48

Finding the Fourth Proportional to 12,195.92, 18,294.39 and 4,299.48

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Solution

The fourth proportional to 12,195.92, 18,294.39 and 4,299.48 is: 6,449.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.92 : 18,294.39 = 4,299.48 : x
  2. Step 2: Convert to fraction form
    12,195.92/18,294.39 = 4,299.48/x
  3. Step 3: Cross multiply
    12,195.92x = 18,294.39 × 4,299.48
  4. Step 4: Simplify right side
    12,195.92x = 78,656,363.92
  5. Step 5: Solve for x
    x = 78,656,363.92/12,195.92
  6. Step 6: Final answer
    x = 6,449.40

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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.