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Finding the Third Proportional to 5,213.75 and 7,682.38

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Solution

The third proportional to 5,213.75 and 7,682.38 is: 11,319.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,213.75 : 7,682.38 = 7,682.38 : x
  2. Step 2: Convert to fraction form
    5,213.75/7,682.38 = 7,682.38/x
  3. Step 3: Cross multiply
    5,213.75x = 7,682.38 × 7,682.38
  4. Step 4: Simplify right side
    5,213.75x = 59,018,885.64
  5. Step 5: Solve for x
    x = 59,018,885.64/5,213.75
  6. Step 6: Final answer
    x = 11,319.85

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These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.