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Finding the Third Proportional to 8,127 and 13,020.75

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Solution

The third proportional to 8,127 and 13,020.75 is: 20,861.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127 : 13,020.75 = 13,020.75 : x
  2. Step 2: Convert to fraction form
    8,127/13,020.75 = 13,020.75/x
  3. Step 3: Cross multiply
    8,127x = 13,020.75 × 13,020.75
  4. Step 4: Simplify right side
    8,127x = 169,539,930.56
  5. Step 5: Solve for x
    x = 169,539,930.56/8,127
  6. Step 6: Final answer
    x = 20,861.32

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.