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Finding the Third Proportional to 13,434.75 and 15,864.75

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Solution

The third proportional to 13,434.75 and 15,864.75 is: 18,734.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.75 : 15,864.75 = 15,864.75 : x
  2. Step 2: Convert to fraction form
    13,434.75/15,864.75 = 15,864.75/x
  3. Step 3: Cross multiply
    13,434.75x = 15,864.75 × 15,864.75
  4. Step 4: Simplify right side
    13,434.75x = 251,690,292.56
  5. Step 5: Solve for x
    x = 251,690,292.56/13,434.75
  6. Step 6: Final answer
    x = 18,734.27

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Why These Related Problems?

These problems maintain the same ratio (1.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.