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Finding the Third Proportional to 9,021 and 13,765.50

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Solution

The third proportional to 9,021 and 13,765.50 is: 21,005.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,021 : 13,765.50 = 13,765.50 : x
  2. Step 2: Convert to fraction form
    9,021/13,765.50 = 13,765.50/x
  3. Step 3: Cross multiply
    9,021x = 13,765.50 × 13,765.50
  4. Step 4: Simplify right side
    9,021x = 189,488,990.25
  5. Step 5: Solve for x
    x = 189,488,990.25/9,021
  6. Step 6: Final answer
    x = 21,005.32

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.