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Finding the Third Proportional to 13,740 and 19,746

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Solution

The third proportional to 13,740 and 19,746 is: 28,377.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,740 : 19,746 = 19,746 : x
  2. Step 2: Convert to fraction form
    13,740/19,746 = 19,746/x
  3. Step 3: Cross multiply
    13,740x = 19,746 × 19,746
  4. Step 4: Simplify right side
    13,740x = 389,904,516
  5. Step 5: Solve for x
    x = 389,904,516/13,740
  6. Step 6: Final answer
    x = 28,377.33

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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.