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Finding the Fourth Proportional to 10,321.66, 14,243.97 and 5,605.96

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Solution

The fourth proportional to 10,321.66, 14,243.97 and 5,605.96 is: 7,736.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,321.66 : 14,243.97 = 5,605.96 : x
  2. Step 2: Convert to fraction form
    10,321.66/14,243.97 = 5,605.96/x
  3. Step 3: Cross multiply
    10,321.66x = 14,243.97 × 5,605.96
  4. Step 4: Simplify right side
    10,321.66x = 79,851,126.06
  5. Step 5: Solve for x
    x = 79,851,126.06/10,321.66
  6. Step 6: Final answer
    x = 7,736.27

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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.