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Finding the Third Proportional to 4,082 and 8,518.75

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Solution

The third proportional to 4,082 and 8,518.75 is: 17,777.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,082 : 8,518.75 = 8,518.75 : x
  2. Step 2: Convert to fraction form
    4,082/8,518.75 = 8,518.75/x
  3. Step 3: Cross multiply
    4,082x = 8,518.75 × 8,518.75
  4. Step 4: Simplify right side
    4,082x = 72,569,101.56
  5. Step 5: Solve for x
    x = 72,569,101.56/4,082
  6. Step 6: Final answer
    x = 17,777.83

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Why These Related Problems?

These problems maintain the same ratio (2.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.