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Finding the Fourth Proportional to 18,323.94, 25,287.03 and 9,940.44

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Solution

The fourth proportional to 18,323.94, 25,287.03 and 9,940.44 is: 13,717.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,323.94 : 25,287.03 = 9,940.44 : x
  2. Step 2: Convert to fraction form
    18,323.94/25,287.03 = 9,940.44/x
  3. Step 3: Cross multiply
    18,323.94x = 25,287.03 × 9,940.44
  4. Step 4: Simplify right side
    18,323.94x = 251,364,204.49
  5. Step 5: Solve for x
    x = 251,364,204.49/18,323.94
  6. Step 6: Final answer
    x = 13,717.80

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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.