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Finding the Fourth Proportional to 8,874.50, 12,246.81 and 5,149.22

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Solution

The fourth proportional to 8,874.50, 12,246.81 and 5,149.22 is: 7,105.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,874.50 : 12,246.81 = 5,149.22 : x
  2. Step 2: Convert to fraction form
    8,874.50/12,246.81 = 5,149.22/x
  3. Step 3: Cross multiply
    8,874.50x = 12,246.81 × 5,149.22
  4. Step 4: Simplify right side
    8,874.50x = 63,061,518.99
  5. Step 5: Solve for x
    x = 63,061,518.99/8,874.50
  6. Step 6: Final answer
    x = 7,105.92

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.