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Finding the Fourth Proportional to 11,293.68, 16,918.65 and 5,454.39

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Solution

The fourth proportional to 11,293.68, 16,918.65 and 5,454.39 is: 8,171.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,293.68 : 16,918.65 = 5,454.39 : x
  2. Step 2: Convert to fraction form
    11,293.68/16,918.65 = 5,454.39/x
  3. Step 3: Cross multiply
    11,293.68x = 16,918.65 × 5,454.39
  4. Step 4: Simplify right side
    11,293.68x = 92,280,888.10
  5. Step 5: Solve for x
    x = 92,280,888.10/11,293.68
  6. Step 6: Final answer
    x = 8,171.02

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