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Finding the Fourth Proportional to 18,387.84, 25,376.95 and 10,836.52

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Solution

The fourth proportional to 18,387.84, 25,376.95 and 10,836.52 is: 14,955.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,387.84 : 25,376.95 = 10,836.52 : x
  2. Step 2: Convert to fraction form
    18,387.84/25,376.95 = 10,836.52/x
  3. Step 3: Cross multiply
    18,387.84x = 25,376.95 × 10,836.52
  4. Step 4: Simplify right side
    18,387.84x = 274,997,826.21
  5. Step 5: Solve for x
    x = 274,997,826.21/18,387.84
  6. Step 6: Final answer
    x = 14,955.42

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