Home / 8,112.48-12,170.88-2,565.96

Finding the Fourth Proportional to 8,112.48, 12,170.88 and 2,565.96

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Solution

The fourth proportional to 8,112.48, 12,170.88 and 2,565.96 is: 3,849.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,112.48 : 12,170.88 = 2,565.96 : x
  2. Step 2: Convert to fraction form
    8,112.48/12,170.88 = 2,565.96/x
  3. Step 3: Cross multiply
    8,112.48x = 12,170.88 × 2,565.96
  4. Step 4: Simplify right side
    8,112.48x = 31,229,991.24
  5. Step 5: Solve for x
    x = 31,229,991.24/8,112.48
  6. Step 6: Final answer
    x = 3,849.62

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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.