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Finding the Third Proportional to 13,288 and 18,896

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Solution

The third proportional to 13,288 and 18,896 is: 26,870.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,288 : 18,896 = 18,896 : x
  2. Step 2: Convert to fraction form
    13,288/18,896 = 18,896/x
  3. Step 3: Cross multiply
    13,288x = 18,896 × 18,896
  4. Step 4: Simplify right side
    13,288x = 357,058,816
  5. Step 5: Solve for x
    x = 357,058,816/13,288
  6. Step 6: Final answer
    x = 26,870.77

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Why These Related Problems?

These problems maintain the same ratio (1.42) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.