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Finding the Fourth Proportional to 11,093.12, 15,287.46 and 7,943.84

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Solution

The fourth proportional to 11,093.12, 15,287.46 and 7,943.84 is: 10,947.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,093.12 : 15,287.46 = 7,943.84 : x
  2. Step 2: Convert to fraction form
    11,093.12/15,287.46 = 7,943.84/x
  3. Step 3: Cross multiply
    11,093.12x = 15,287.46 × 7,943.84
  4. Step 4: Simplify right side
    11,093.12x = 121,441,136.25
  5. Step 5: Solve for x
    x = 121,441,136.25/11,093.12
  6. Step 6: Final answer
    x = 10,947.43

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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.