Home / 12,229.44-18,341.76-3,910.40

Finding the Fourth Proportional to 12,229.44, 18,341.76 and 3,910.40

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Solution

The fourth proportional to 12,229.44, 18,341.76 and 3,910.40 is: 5,864.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,229.44 : 18,341.76 = 3,910.40 : x
  2. Step 2: Convert to fraction form
    12,229.44/18,341.76 = 3,910.40/x
  3. Step 3: Cross multiply
    12,229.44x = 18,341.76 × 3,910.40
  4. Step 4: Simplify right side
    12,229.44x = 71,723,618.30
  5. Step 5: Solve for x
    x = 71,723,618.30/12,229.44
  6. Step 6: Final answer
    x = 5,864.83

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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.