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Finding the Fourth Proportional to 8,744.70, 12,072.57 and 6,696.72

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Solution

The fourth proportional to 8,744.70, 12,072.57 and 6,696.72 is: 9,245.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,744.70 : 12,072.57 = 6,696.72 : x
  2. Step 2: Convert to fraction form
    8,744.70/12,072.57 = 6,696.72/x
  3. Step 3: Cross multiply
    8,744.70x = 12,072.57 × 6,696.72
  4. Step 4: Simplify right side
    8,744.70x = 80,846,620.97
  5. Step 5: Solve for x
    x = 80,846,620.97/8,744.70
  6. Step 6: Final answer
    x = 9,245.21

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1.5x scale

Why These Related Problems?

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