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Finding the Fourth Proportional to 13,047.40, 18,005.19 and 7,941.07

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Solution

The fourth proportional to 13,047.40, 18,005.19 and 7,941.07 is: 10,958.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,047.40 : 18,005.19 = 7,941.07 : x
  2. Step 2: Convert to fraction form
    13,047.40/18,005.19 = 7,941.07/x
  3. Step 3: Cross multiply
    13,047.40x = 18,005.19 × 7,941.07
  4. Step 4: Simplify right side
    13,047.40x = 142,980,466.88
  5. Step 5: Solve for x
    x = 142,980,466.88/13,047.40
  6. Step 6: Final answer
    x = 10,958.54

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