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Finding the Third Proportional to 10,953 and 16,991.25

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Solution

The third proportional to 10,953 and 16,991.25 is: 26,358.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,953 : 16,991.25 = 16,991.25 : x
  2. Step 2: Convert to fraction form
    10,953/16,991.25 = 16,991.25/x
  3. Step 3: Cross multiply
    10,953x = 16,991.25 × 16,991.25
  4. Step 4: Simplify right side
    10,953x = 288,702,576.56
  5. Step 5: Solve for x
    x = 288,702,576.56/10,953
  6. Step 6: Final answer
    x = 26,358.31

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.