Home / 8,370.82-12,558.39-3,173.86

Finding the Fourth Proportional to 8,370.82, 12,558.39 and 3,173.86

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Solution

The fourth proportional to 8,370.82, 12,558.39 and 3,173.86 is: 4,761.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,370.82 : 12,558.39 = 3,173.86 : x
  2. Step 2: Convert to fraction form
    8,370.82/12,558.39 = 3,173.86/x
  3. Step 3: Cross multiply
    8,370.82x = 12,558.39 × 3,173.86
  4. Step 4: Simplify right side
    8,370.82x = 39,858,571.69
  5. Step 5: Solve for x
    x = 39,858,571.69/8,370.82
  6. Step 6: Final answer
    x = 4,761.61

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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.