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Finding the Third Proportional to 5,331.75 and 8,518.13

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Solution

The third proportional to 5,331.75 and 8,518.13 is: 13,608.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,331.75 : 8,518.13 = 8,518.13 : x
  2. Step 2: Convert to fraction form
    5,331.75/8,518.13 = 8,518.13/x
  3. Step 3: Cross multiply
    5,331.75x = 8,518.13 × 8,518.13
  4. Step 4: Simplify right side
    5,331.75x = 72,558,453.52
  5. Step 5: Solve for x
    x = 72,558,453.52/5,331.75
  6. Step 6: Final answer
    x = 13,608.75

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.