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Finding the Third Proportional to 9,778 and 17,276

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Solution

The third proportional to 9,778 and 17,276 is: 30,523.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,778 : 17,276 = 17,276 : x
  2. Step 2: Convert to fraction form
    9,778/17,276 = 17,276/x
  3. Step 3: Cross multiply
    9,778x = 17,276 × 17,276
  4. Step 4: Simplify right side
    9,778x = 298,460,176
  5. Step 5: Solve for x
    x = 298,460,176/9,778
  6. Step 6: Final answer
    x = 30,523.64

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Why These Related Problems?

These problems maintain the same ratio (1.77) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.