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Finding the Third Proportional to 13,426 and 18,669

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Solution

The third proportional to 13,426 and 18,669 is: 25,959.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,426 : 18,669 = 18,669 : x
  2. Step 2: Convert to fraction form
    13,426/18,669 = 18,669/x
  3. Step 3: Cross multiply
    13,426x = 18,669 × 18,669
  4. Step 4: Simplify right side
    13,426x = 348,531,561
  5. Step 5: Solve for x
    x = 348,531,561/13,426
  6. Step 6: Final answer
    x = 25,959.45

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.