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Finding the Fourth Proportional to 8,581.68, 12,874.33 and 2,959.86

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Solution

The fourth proportional to 8,581.68, 12,874.33 and 2,959.86 is: 4,440.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,581.68 : 12,874.33 = 2,959.86 : x
  2. Step 2: Convert to fraction form
    8,581.68/12,874.33 = 2,959.86/x
  3. Step 3: Cross multiply
    8,581.68x = 12,874.33 × 2,959.86
  4. Step 4: Simplify right side
    8,581.68x = 38,106,266.37
  5. Step 5: Solve for x
    x = 38,106,266.37/8,581.68
  6. Step 6: Final answer
    x = 4,440.42

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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.