Home / 12,269.20-18,414.60-9,806.80

Finding the Fourth Proportional to 12,269.20, 18,414.60 and 9,806.80

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Solution

The fourth proportional to 12,269.20, 18,414.60 and 9,806.80 is: 14,718.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,269.20 : 18,414.60 = 9,806.80 : x
  2. Step 2: Convert to fraction form
    12,269.20/18,414.60 = 9,806.80/x
  3. Step 3: Cross multiply
    12,269.20x = 18,414.60 × 9,806.80
  4. Step 4: Simplify right side
    12,269.20x = 180,588,299.28
  5. Step 5: Solve for x
    x = 180,588,299.28/12,269.20
  6. Step 6: Final answer
    x = 14,718.83

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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.