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Finding the Third Proportional to 8,959.50 and 13,389.75

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Solution

The third proportional to 8,959.50 and 13,389.75 is: 20,010.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.50 : 13,389.75 = 13,389.75 : x
  2. Step 2: Convert to fraction form
    8,959.50/13,389.75 = 13,389.75/x
  3. Step 3: Cross multiply
    8,959.50x = 13,389.75 × 13,389.75
  4. Step 4: Simplify right side
    8,959.50x = 179,285,405.06
  5. Step 5: Solve for x
    x = 179,285,405.06/8,959.50
  6. Step 6: Final answer
    x = 20,010.65

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.