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Finding the Third Proportional to 5,313.75 and 8,199.19

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Solution

The third proportional to 5,313.75 and 8,199.19 is: 12,651.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,313.75 : 8,199.19 = 8,199.19 : x
  2. Step 2: Convert to fraction form
    5,313.75/8,199.19 = 8,199.19/x
  3. Step 3: Cross multiply
    5,313.75x = 8,199.19 × 8,199.19
  4. Step 4: Simplify right side
    5,313.75x = 67,226,675.66
  5. Step 5: Solve for x
    x = 67,226,675.66/5,313.75
  6. Step 6: Final answer
    x = 12,651.46

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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.