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Finding the Third Proportional to 3,059.50 and 8,143

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Solution

The third proportional to 3,059.50 and 8,143 is: 21,672.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,059.50 : 8,143 = 8,143 : x
  2. Step 2: Convert to fraction form
    3,059.50/8,143 = 8,143/x
  3. Step 3: Cross multiply
    3,059.50x = 8,143 × 8,143
  4. Step 4: Simplify right side
    3,059.50x = 66,308,449
  5. Step 5: Solve for x
    x = 66,308,449/3,059.50
  6. Step 6: Final answer
    x = 21,672.97

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Why These Related Problems?

These problems maintain the same ratio (2.66) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.