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Finding the Third Proportional to 13,320 and 19,187

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Solution

The third proportional to 13,320 and 19,187 is: 27,638.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320 : 19,187 = 19,187 : x
  2. Step 2: Convert to fraction form
    13,320/19,187 = 19,187/x
  3. Step 3: Cross multiply
    13,320x = 19,187 × 19,187
  4. Step 4: Simplify right side
    13,320x = 368,140,969
  5. Step 5: Solve for x
    x = 368,140,969/13,320
  6. Step 6: Final answer
    x = 27,638.21

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Why These Related Problems?

These problems maintain the same ratio (1.44) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.