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Finding the Fourth Proportional to 8,067, 12,105.90 and 3,451.08

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Solution

The fourth proportional to 8,067, 12,105.90 and 3,451.08 is: 5,178.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,067 : 12,105.90 = 3,451.08 : x
  2. Step 2: Convert to fraction form
    8,067/12,105.90 = 3,451.08/x
  3. Step 3: Cross multiply
    8,067x = 12,105.90 × 3,451.08
  4. Step 4: Simplify right side
    8,067x = 41,778,429.37
  5. Step 5: Solve for x
    x = 41,778,429.37/8,067
  6. Step 6: Final answer
    x = 5,178.93

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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.