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Finding the Third Proportional to 9,408 and 13,830.75

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Solution

The third proportional to 9,408 and 13,830.75 is: 20,332.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,408 : 13,830.75 = 13,830.75 : x
  2. Step 2: Convert to fraction form
    9,408/13,830.75 = 13,830.75/x
  3. Step 3: Cross multiply
    9,408x = 13,830.75 × 13,830.75
  4. Step 4: Simplify right side
    9,408x = 191,289,645.56
  5. Step 5: Solve for x
    x = 191,289,645.56/9,408
  6. Step 6: Final answer
    x = 20,332.66

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.