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Finding the Third Proportional to 6,872.50 and 10,668

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Solution

The third proportional to 6,872.50 and 10,668 is: 16,559.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,872.50 : 10,668 = 10,668 : x
  2. Step 2: Convert to fraction form
    6,872.50/10,668 = 10,668/x
  3. Step 3: Cross multiply
    6,872.50x = 10,668 × 10,668
  4. Step 4: Simplify right side
    6,872.50x = 113,806,224
  5. Step 5: Solve for x
    x = 113,806,224/6,872.50
  6. Step 6: Final answer
    x = 16,559.65

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.