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Finding the Fourth Proportional to 8,450.48, 11,663.43 and 5,618.09

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Solution

The fourth proportional to 8,450.48, 11,663.43 and 5,618.09 is: 7,754.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,450.48 : 11,663.43 = 5,618.09 : x
  2. Step 2: Convert to fraction form
    8,450.48/11,663.43 = 5,618.09/x
  3. Step 3: Cross multiply
    8,450.48x = 11,663.43 × 5,618.09
  4. Step 4: Simplify right side
    8,450.48x = 65,526,199.45
  5. Step 5: Solve for x
    x = 65,526,199.45/8,450.48
  6. Step 6: Final answer
    x = 7,754.14

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.