Home / 8,081.13-12,118.48-3,403.38

Finding the Fourth Proportional to 8,081.13, 12,118.48 and 3,403.38

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Solution

The fourth proportional to 8,081.13, 12,118.48 and 3,403.38 is: 5,103.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.13 : 12,118.48 = 3,403.38 : x
  2. Step 2: Convert to fraction form
    8,081.13/12,118.48 = 3,403.38/x
  3. Step 3: Cross multiply
    8,081.13x = 12,118.48 × 3,403.38
  4. Step 4: Simplify right side
    8,081.13x = 41,243,714.85
  5. Step 5: Solve for x
    x = 41,243,714.85/8,081.13
  6. Step 6: Final answer
    x = 5,103.71

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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.