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Finding the Third Proportional to 8,889 and 13,630.50

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Solution

The third proportional to 8,889 and 13,630.50 is: 20,901.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,889 : 13,630.50 = 13,630.50 : x
  2. Step 2: Convert to fraction form
    8,889/13,630.50 = 13,630.50/x
  3. Step 3: Cross multiply
    8,889x = 13,630.50 × 13,630.50
  4. Step 4: Simplify right side
    8,889x = 185,790,530.25
  5. Step 5: Solve for x
    x = 185,790,530.25/8,889
  6. Step 6: Final answer
    x = 20,901.17

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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.