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Finding the Third Proportional to 11,889 and 14,427

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Solution

The third proportional to 11,889 and 14,427 is: 17,506.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,889 : 14,427 = 14,427 : x
  2. Step 2: Convert to fraction form
    11,889/14,427 = 14,427/x
  3. Step 3: Cross multiply
    11,889x = 14,427 × 14,427
  4. Step 4: Simplify right side
    11,889x = 208,138,329
  5. Step 5: Solve for x
    x = 208,138,329/11,889
  6. Step 6: Final answer
    x = 17,506.80

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Why These Related Problems?

These problems maintain the same ratio (1.21) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.