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Finding the Third Proportional to 8,553 and 12,370.50

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Solution

The third proportional to 8,553 and 12,370.50 is: 17,891.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,553 : 12,370.50 = 12,370.50 : x
  2. Step 2: Convert to fraction form
    8,553/12,370.50 = 12,370.50/x
  3. Step 3: Cross multiply
    8,553x = 12,370.50 × 12,370.50
  4. Step 4: Simplify right side
    8,553x = 153,029,270.25
  5. Step 5: Solve for x
    x = 153,029,270.25/8,553
  6. Step 6: Final answer
    x = 17,891.88

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Why These Related Problems?

These problems maintain the same ratio (1.45) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.