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Finding the Third Proportional to 5,645.95 and 8,618.91

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Solution

The third proportional to 5,645.95 and 8,618.91 is: 13,157.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,645.95 : 8,618.91 = 8,618.91 : x
  2. Step 2: Convert to fraction form
    5,645.95/8,618.91 = 8,618.91/x
  3. Step 3: Cross multiply
    5,645.95x = 8,618.91 × 8,618.91
  4. Step 4: Simplify right side
    5,645.95x = 74,285,544.95
  5. Step 5: Solve for x
    x = 74,285,544.95/5,645.95
  6. Step 6: Final answer
    x = 13,157.31

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.