Home / 8,069.76-12,105.99-2,874.42

Finding the Fourth Proportional to 8,069.76, 12,105.99 and 2,874.42

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Solution

The fourth proportional to 8,069.76, 12,105.99 and 2,874.42 is: 4,312.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,069.76 : 12,105.99 = 2,874.42 : x
  2. Step 2: Convert to fraction form
    8,069.76/12,105.99 = 2,874.42/x
  3. Step 3: Cross multiply
    8,069.76x = 12,105.99 × 2,874.42
  4. Step 4: Simplify right side
    8,069.76x = 34,797,699.78
  5. Step 5: Solve for x
    x = 34,797,699.78/8,069.76
  6. Step 6: Final answer
    x = 4,312.11

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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.