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Finding the Third Proportional to 10,163 and 13,489

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Solution

The third proportional to 10,163 and 13,489 is: 17,903.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,163 : 13,489 = 13,489 : x
  2. Step 2: Convert to fraction form
    10,163/13,489 = 13,489/x
  3. Step 3: Cross multiply
    10,163x = 13,489 × 13,489
  4. Step 4: Simplify right side
    10,163x = 181,953,121
  5. Step 5: Solve for x
    x = 181,953,121/10,163
  6. Step 6: Final answer
    x = 17,903.49

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.