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Finding the Third Proportional to 10,707.75 and 12,894.75

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Solution

The third proportional to 10,707.75 and 12,894.75 is: 15,528.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,707.75 : 12,894.75 = 12,894.75 : x
  2. Step 2: Convert to fraction form
    10,707.75/12,894.75 = 12,894.75/x
  3. Step 3: Cross multiply
    10,707.75x = 12,894.75 × 12,894.75
  4. Step 4: Simplify right side
    10,707.75x = 166,274,577.56
  5. Step 5: Solve for x
    x = 166,274,577.56/10,707.75
  6. Step 6: Final answer
    x = 15,528.43

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Why These Related Problems?

These problems maintain the same ratio (1.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.