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Finding the Third Proportional to 13,140 and 27,388

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Solution

The third proportional to 13,140 and 27,388 is: 57,085.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140 : 27,388 = 27,388 : x
  2. Step 2: Convert to fraction form
    13,140/27,388 = 27,388/x
  3. Step 3: Cross multiply
    13,140x = 27,388 × 27,388
  4. Step 4: Simplify right side
    13,140x = 750,102,544
  5. Step 5: Solve for x
    x = 750,102,544/13,140
  6. Step 6: Final answer
    x = 57,085.43

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Why These Related Problems?

These problems maintain the same ratio (2.08) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.