Home / 8,961.51-13,442.86-2,387.75

Finding the Fourth Proportional to 8,961.51, 13,442.86 and 2,387.75

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Solution

The fourth proportional to 8,961.51, 13,442.86 and 2,387.75 is: 3,581.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961.51 : 13,442.86 = 2,387.75 : x
  2. Step 2: Convert to fraction form
    8,961.51/13,442.86 = 2,387.75/x
  3. Step 3: Cross multiply
    8,961.51x = 13,442.86 × 2,387.75
  4. Step 4: Simplify right side
    8,961.51x = 32,098,188.97
  5. Step 5: Solve for x
    x = 32,098,188.97/8,961.51
  6. Step 6: Final answer
    x = 3,581.78

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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.