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Finding the Third Proportional to 8,961 and 13,117.50

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Solution

The third proportional to 8,961 and 13,117.50 is: 19,201.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,961 : 13,117.50 = 13,117.50 : x
  2. Step 2: Convert to fraction form
    8,961/13,117.50 = 13,117.50/x
  3. Step 3: Cross multiply
    8,961x = 13,117.50 × 13,117.50
  4. Step 4: Simplify right side
    8,961x = 172,068,806.25
  5. Step 5: Solve for x
    x = 172,068,806.25/8,961
  6. Step 6: Final answer
    x = 19,201.96

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.