Home / 8,305.77-12,456.21-3,110.43

Finding the Fourth Proportional to 8,305.77, 12,456.21 and 3,110.43

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Solution

The fourth proportional to 8,305.77, 12,456.21 and 3,110.43 is: 4,664.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305.77 : 12,456.21 = 3,110.43 : x
  2. Step 2: Convert to fraction form
    8,305.77/12,456.21 = 3,110.43/x
  3. Step 3: Cross multiply
    8,305.77x = 12,456.21 × 3,110.43
  4. Step 4: Simplify right side
    8,305.77x = 38,744,169.27
  5. Step 5: Solve for x
    x = 38,744,169.27/8,305.77
  6. Step 6: Final answer
    x = 4,664.73

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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.