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Finding the Third Proportional to 9,619 and 21,127

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Solution

The third proportional to 9,619 and 21,127 is: 46,402.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,619 : 21,127 = 21,127 : x
  2. Step 2: Convert to fraction form
    9,619/21,127 = 21,127/x
  3. Step 3: Cross multiply
    9,619x = 21,127 × 21,127
  4. Step 4: Simplify right side
    9,619x = 446,350,129
  5. Step 5: Solve for x
    x = 446,350,129/9,619
  6. Step 6: Final answer
    x = 46,402.97

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.