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Finding the Fourth Proportional to 13,970.92, 19,287.84 and 9,261.58

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Solution

The fourth proportional to 13,970.92, 19,287.84 and 9,261.58 is: 12,786.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,970.92 : 19,287.84 = 9,261.58 : x
  2. Step 2: Convert to fraction form
    13,970.92/19,287.84 = 9,261.58/x
  3. Step 3: Cross multiply
    13,970.92x = 19,287.84 × 9,261.58
  4. Step 4: Simplify right side
    13,970.92x = 178,635,873.19
  5. Step 5: Solve for x
    x = 178,635,873.19/13,970.92
  6. Step 6: Final answer
    x = 12,786.26

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