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Finding the Third Proportional to 13,358 and 18,790

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Solution

The third proportional to 13,358 and 18,790 is: 26,430.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,358 : 18,790 = 18,790 : x
  2. Step 2: Convert to fraction form
    13,358/18,790 = 18,790/x
  3. Step 3: Cross multiply
    13,358x = 18,790 × 18,790
  4. Step 4: Simplify right side
    13,358x = 353,064,100
  5. Step 5: Solve for x
    x = 353,064,100/13,358
  6. Step 6: Final answer
    x = 26,430.91

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Why These Related Problems?

These problems maintain the same ratio (1.41) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.