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Finding the Third Proportional to 3,991.50 and 8,097.75

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Solution

The third proportional to 3,991.50 and 8,097.75 is: 16,428.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,991.50 : 8,097.75 = 8,097.75 : x
  2. Step 2: Convert to fraction form
    3,991.50/8,097.75 = 8,097.75/x
  3. Step 3: Cross multiply
    3,991.50x = 8,097.75 × 8,097.75
  4. Step 4: Simplify right side
    3,991.50x = 65,573,555.06
  5. Step 5: Solve for x
    x = 65,573,555.06/3,991.50
  6. Step 6: Final answer
    x = 16,428.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.03) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.