Home / 12,229.99-18,305.19-6,669.54

Finding the Fourth Proportional to 12,229.99, 18,305.19 and 6,669.54

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Solution

The fourth proportional to 12,229.99, 18,305.19 and 6,669.54 is: 9,982.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,229.99 : 18,305.19 = 6,669.54 : x
  2. Step 2: Convert to fraction form
    12,229.99/18,305.19 = 6,669.54/x
  3. Step 3: Cross multiply
    12,229.99x = 18,305.19 × 6,669.54
  4. Step 4: Simplify right side
    12,229.99x = 122,087,196.91
  5. Step 5: Solve for x
    x = 122,087,196.91/12,229.99
  6. Step 6: Final answer
    x = 9,982.61

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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.