Home / 17,857.15-26,767.36-12,015.43

Finding the Fourth Proportional to 17,857.15, 26,767.36 and 12,015.43

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Solution

The fourth proportional to 17,857.15, 26,767.36 and 12,015.43 is: 18,010.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,857.15 : 26,767.36 = 12,015.43 : x
  2. Step 2: Convert to fraction form
    17,857.15/26,767.36 = 12,015.43/x
  3. Step 3: Cross multiply
    17,857.15x = 26,767.36 × 12,015.43
  4. Step 4: Simplify right side
    17,857.15x = 321,621,340.36
  5. Step 5: Solve for x
    x = 321,621,340.36/17,857.15
  6. Step 6: Final answer
    x = 18,010.79

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