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Finding the Third Proportional to 11,817 and 13,545

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Solution

The third proportional to 11,817 and 13,545 is: 15,525.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,817 : 13,545 = 13,545 : x
  2. Step 2: Convert to fraction form
    11,817/13,545 = 13,545/x
  3. Step 3: Cross multiply
    11,817x = 13,545 × 13,545
  4. Step 4: Simplify right side
    11,817x = 183,467,025
  5. Step 5: Solve for x
    x = 183,467,025/11,817
  6. Step 6: Final answer
    x = 15,525.69

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Why These Related Problems?

These problems maintain the same ratio (1.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.