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Finding the Fourth Proportional to 8,711.31, 13,068.99 and 2,867.70

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Solution

The fourth proportional to 8,711.31, 13,068.99 and 2,867.70 is: 4,302.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,711.31 : 13,068.99 = 2,867.70 : x
  2. Step 2: Convert to fraction form
    8,711.31/13,068.99 = 2,867.70/x
  3. Step 3: Cross multiply
    8,711.31x = 13,068.99 × 2,867.70
  4. Step 4: Simplify right side
    8,711.31x = 37,477,942.62
  5. Step 5: Solve for x
    x = 37,477,942.62/8,711.31
  6. Step 6: Final answer
    x = 4,302.22

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