Home / 6,929.09-10,393.87-1,998.78

Finding the Fourth Proportional to 6,929.09, 10,393.87 and 1,998.78

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Solution

The fourth proportional to 6,929.09, 10,393.87 and 1,998.78 is: 2,998.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,929.09 : 10,393.87 = 1,998.78 : x
  2. Step 2: Convert to fraction form
    6,929.09/10,393.87 = 1,998.78/x
  3. Step 3: Cross multiply
    6,929.09x = 10,393.87 × 1,998.78
  4. Step 4: Simplify right side
    6,929.09x = 20,775,019.25
  5. Step 5: Solve for x
    x = 20,775,019.25/6,929.09
  6. Step 6: Final answer
    x = 2,998.23

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