Home / 12,231.24-16,879.20-7,195.68

Finding the Fourth Proportional to 12,231.24, 16,879.20 and 7,195.68

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Solution

The fourth proportional to 12,231.24, 16,879.20 and 7,195.68 is: 9,930.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,231.24 : 16,879.20 = 7,195.68 : x
  2. Step 2: Convert to fraction form
    12,231.24/16,879.20 = 7,195.68/x
  3. Step 3: Cross multiply
    12,231.24x = 16,879.20 × 7,195.68
  4. Step 4: Simplify right side
    12,231.24x = 121,457,321.86
  5. Step 5: Solve for x
    x = 121,457,321.86/12,231.24
  6. Step 6: Final answer
    x = 9,930.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.