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Finding the Third Proportional to 9,988 and 15,364

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Solution

The third proportional to 9,988 and 15,364 is: 23,633.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988 : 15,364 = 15,364 : x
  2. Step 2: Convert to fraction form
    9,988/15,364 = 15,364/x
  3. Step 3: Cross multiply
    9,988x = 15,364 × 15,364
  4. Step 4: Simplify right side
    9,988x = 236,052,496
  5. Step 5: Solve for x
    x = 236,052,496/9,988
  6. Step 6: Final answer
    x = 23,633.61

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.