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Finding the Third Proportional to 8,571 and 13,642.50

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Solution

The third proportional to 8,571 and 13,642.50 is: 21,714.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,571 : 13,642.50 = 13,642.50 : x
  2. Step 2: Convert to fraction form
    8,571/13,642.50 = 13,642.50/x
  3. Step 3: Cross multiply
    8,571x = 13,642.50 × 13,642.50
  4. Step 4: Simplify right side
    8,571x = 186,117,806.25
  5. Step 5: Solve for x
    x = 186,117,806.25/8,571
  6. Step 6: Final answer
    x = 21,714.83

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.