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Finding the Fourth Proportional to 11,574.80, 17,362.20 and 3,784.40

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Solution

The fourth proportional to 11,574.80, 17,362.20 and 3,784.40 is: 5,676.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,574.80 : 17,362.20 = 3,784.40 : x
  2. Step 2: Convert to fraction form
    11,574.80/17,362.20 = 3,784.40/x
  3. Step 3: Cross multiply
    11,574.80x = 17,362.20 × 3,784.40
  4. Step 4: Simplify right side
    11,574.80x = 65,705,509.68
  5. Step 5: Solve for x
    x = 65,705,509.68/11,574.80
  6. Step 6: Final answer
    x = 5,676.60

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