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Finding the Third Proportional to 8,451 and 18,382.75

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Solution

The third proportional to 8,451 and 18,382.75 is: 39,986.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451 : 18,382.75 = 18,382.75 : x
  2. Step 2: Convert to fraction form
    8,451/18,382.75 = 18,382.75/x
  3. Step 3: Cross multiply
    8,451x = 18,382.75 × 18,382.75
  4. Step 4: Simplify right side
    8,451x = 337,925,497.56
  5. Step 5: Solve for x
    x = 337,925,497.56/8,451
  6. Step 6: Final answer
    x = 39,986.45

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.