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Finding the Third Proportional to 11,136 and 19,712

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Solution

The third proportional to 11,136 and 19,712 is: 34,892.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136 : 19,712 = 19,712 : x
  2. Step 2: Convert to fraction form
    11,136/19,712 = 19,712/x
  3. Step 3: Cross multiply
    11,136x = 19,712 × 19,712
  4. Step 4: Simplify right side
    11,136x = 388,562,944
  5. Step 5: Solve for x
    x = 388,562,944/11,136
  6. Step 6: Final answer
    x = 34,892.51

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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.