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Finding the Fourth Proportional to 12,316.78, 16,996.80 and 6,727.78

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Solution

The fourth proportional to 12,316.78, 16,996.80 and 6,727.78 is: 9,284.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,316.78 : 16,996.80 = 6,727.78 : x
  2. Step 2: Convert to fraction form
    12,316.78/16,996.80 = 6,727.78/x
  3. Step 3: Cross multiply
    12,316.78x = 16,996.80 × 6,727.78
  4. Step 4: Simplify right side
    12,316.78x = 114,350,731.10
  5. Step 5: Solve for x
    x = 114,350,731.10/12,316.78
  6. Step 6: Final answer
    x = 9,284.14

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