Home / 13,840.83-20,764.77-3,979.95

Finding the Fourth Proportional to 13,840.83, 20,764.77 and 3,979.95

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Solution

The fourth proportional to 13,840.83, 20,764.77 and 3,979.95 is: 5,970.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.83 : 20,764.77 = 3,979.95 : x
  2. Step 2: Convert to fraction form
    13,840.83/20,764.77 = 3,979.95/x
  3. Step 3: Cross multiply
    13,840.83x = 20,764.77 × 3,979.95
  4. Step 4: Simplify right side
    13,840.83x = 82,642,746.36
  5. Step 5: Solve for x
    x = 82,642,746.36/13,840.83
  6. Step 6: Final answer
    x = 5,970.94

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