Home / 12,324.70-18,450.60-8,169.40

Finding the Fourth Proportional to 12,324.70, 18,450.60 and 8,169.40

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Solution

The fourth proportional to 12,324.70, 18,450.60 and 8,169.40 is: 12,229.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,324.70 : 18,450.60 = 8,169.40 : x
  2. Step 2: Convert to fraction form
    12,324.70/18,450.60 = 8,169.40/x
  3. Step 3: Cross multiply
    12,324.70x = 18,450.60 × 8,169.40
  4. Step 4: Simplify right side
    12,324.70x = 150,730,331.64
  5. Step 5: Solve for x
    x = 150,730,331.64/12,324.70
  6. Step 6: Final answer
    x = 12,229.94

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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.