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Finding the Fourth Proportional to 8,469.84, 12,705.96 and 2,626.96

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Solution

The fourth proportional to 8,469.84, 12,705.96 and 2,626.96 is: 3,940.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,469.84 : 12,705.96 = 2,626.96 : x
  2. Step 2: Convert to fraction form
    8,469.84/12,705.96 = 2,626.96/x
  3. Step 3: Cross multiply
    8,469.84x = 12,705.96 × 2,626.96
  4. Step 4: Simplify right side
    8,469.84x = 33,378,048.68
  5. Step 5: Solve for x
    x = 33,378,048.68/8,469.84
  6. Step 6: Final answer
    x = 3,940.81

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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.