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Finding the Third Proportional to 13,353 and 18,783

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Solution

The third proportional to 13,353 and 18,783 is: 26,421.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,353 : 18,783 = 18,783 : x
  2. Step 2: Convert to fraction form
    13,353/18,783 = 18,783/x
  3. Step 3: Cross multiply
    13,353x = 18,783 × 18,783
  4. Step 4: Simplify right side
    13,353x = 352,801,089
  5. Step 5: Solve for x
    x = 352,801,089/13,353
  6. Step 6: Final answer
    x = 26,421.11

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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.