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Finding the Third Proportional to 9,963 and 17,718.75

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Solution

The third proportional to 9,963 and 17,718.75 is: 31,512.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,963 : 17,718.75 = 17,718.75 : x
  2. Step 2: Convert to fraction form
    9,963/17,718.75 = 17,718.75/x
  3. Step 3: Cross multiply
    9,963x = 17,718.75 × 17,718.75
  4. Step 4: Simplify right side
    9,963x = 313,954,101.56
  5. Step 5: Solve for x
    x = 313,954,101.56/9,963
  6. Step 6: Final answer
    x = 31,512.00

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Why These Related Problems?

These problems maintain the same ratio (1.78) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.