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Finding the Third Proportional to 5,455.50 and 8,396.25

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Solution

The third proportional to 5,455.50 and 8,396.25 is: 12,922.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,455.50 : 8,396.25 = 8,396.25 : x
  2. Step 2: Convert to fraction form
    5,455.50/8,396.25 = 8,396.25/x
  3. Step 3: Cross multiply
    5,455.50x = 8,396.25 × 8,396.25
  4. Step 4: Simplify right side
    5,455.50x = 70,497,014.06
  5. Step 5: Solve for x
    x = 70,497,014.06/5,455.50
  6. Step 6: Final answer
    x = 12,922.19

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.