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Finding the Third Proportional to 11,100 and 11,964

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Solution

The third proportional to 11,100 and 11,964 is: 12,895.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,100 : 11,964 = 11,964 : x
  2. Step 2: Convert to fraction form
    11,100/11,964 = 11,964/x
  3. Step 3: Cross multiply
    11,100x = 11,964 × 11,964
  4. Step 4: Simplify right side
    11,100x = 143,137,296
  5. Step 5: Solve for x
    x = 143,137,296/11,100
  6. Step 6: Final answer
    x = 12,895.25

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Why These Related Problems?

These problems maintain the same ratio (1.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.