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Finding the Fourth Proportional to 6,998.54, 10,500.24 and 3,105.68

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Solution

The fourth proportional to 6,998.54, 10,500.24 and 3,105.68 is: 4,659.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,998.54 : 10,500.24 = 3,105.68 : x
  2. Step 2: Convert to fraction form
    6,998.54/10,500.24 = 3,105.68/x
  3. Step 3: Cross multiply
    6,998.54x = 10,500.24 × 3,105.68
  4. Step 4: Simplify right side
    6,998.54x = 32,610,385.36
  5. Step 5: Solve for x
    x = 32,610,385.36/6,998.54
  6. Step 6: Final answer
    x = 4,659.60

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