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Finding the Fourth Proportional to 18,299.74, 25,253.64 and 9,916.24

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Solution

The fourth proportional to 18,299.74, 25,253.64 and 9,916.24 is: 13,684.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,299.74 : 25,253.64 = 9,916.24 : x
  2. Step 2: Convert to fraction form
    18,299.74/25,253.64 = 9,916.24/x
  3. Step 3: Cross multiply
    18,299.74x = 25,253.64 × 9,916.24
  4. Step 4: Simplify right side
    18,299.74x = 250,421,155.11
  5. Step 5: Solve for x
    x = 250,421,155.11/18,299.74
  6. Step 6: Final answer
    x = 13,684.41

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