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Finding the Fourth Proportional to 7,321.53, 11,039.73 and 6,709.17

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Solution

The fourth proportional to 7,321.53, 11,039.73 and 6,709.17 is: 10,116.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,321.53 : 11,039.73 = 6,709.17 : x
  2. Step 2: Convert to fraction form
    7,321.53/11,039.73 = 6,709.17/x
  3. Step 3: Cross multiply
    7,321.53x = 11,039.73 × 6,709.17
  4. Step 4: Simplify right side
    7,321.53x = 74,067,425.32
  5. Step 5: Solve for x
    x = 74,067,425.32/7,321.53
  6. Step 6: Final answer
    x = 10,116.39

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These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.