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Finding the Fourth Proportional to 18,125.64, 27,188.46 and 4,978.08

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Solution

The fourth proportional to 18,125.64, 27,188.46 and 4,978.08 is: 7,467.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,125.64 : 27,188.46 = 4,978.08 : x
  2. Step 2: Convert to fraction form
    18,125.64/27,188.46 = 4,978.08/x
  3. Step 3: Cross multiply
    18,125.64x = 27,188.46 × 4,978.08
  4. Step 4: Simplify right side
    18,125.64x = 135,346,328.96
  5. Step 5: Solve for x
    x = 135,346,328.96/18,125.64
  6. Step 6: Final answer
    x = 7,467.12

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