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Finding the Fourth Proportional to 11,826.81, 17,730.60 and 4,810.11

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Solution

The fourth proportional to 11,826.81, 17,730.60 and 4,810.11 is: 7,211.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,826.81 : 17,730.60 = 4,810.11 : x
  2. Step 2: Convert to fraction form
    11,826.81/17,730.60 = 4,810.11/x
  3. Step 3: Cross multiply
    11,826.81x = 17,730.60 × 4,810.11
  4. Step 4: Simplify right side
    11,826.81x = 85,286,136.37
  5. Step 5: Solve for x
    x = 85,286,136.37/11,826.81
  6. Step 6: Final answer
    x = 7,211.25

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