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Finding the Fourth Proportional to 7,913.92, 11,871.57 and 2,070.52

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Solution

The fourth proportional to 7,913.92, 11,871.57 and 2,070.52 is: 3,105.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,913.92 : 11,871.57 = 2,070.52 : x
  2. Step 2: Convert to fraction form
    7,913.92/11,871.57 = 2,070.52/x
  3. Step 3: Cross multiply
    7,913.92x = 11,871.57 × 2,070.52
  4. Step 4: Simplify right side
    7,913.92x = 24,580,323.12
  5. Step 5: Solve for x
    x = 24,580,323.12/7,913.92
  6. Step 6: Final answer
    x = 3,105.96

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