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Finding the Fourth Proportional to 10,539.11, 15,806.85 and 3,965.36

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Solution

The fourth proportional to 10,539.11, 15,806.85 and 3,965.36 is: 5,947.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,539.11 : 15,806.85 = 3,965.36 : x
  2. Step 2: Convert to fraction form
    10,539.11/15,806.85 = 3,965.36/x
  3. Step 3: Cross multiply
    10,539.11x = 15,806.85 × 3,965.36
  4. Step 4: Simplify right side
    10,539.11x = 62,679,756.81
  5. Step 5: Solve for x
    x = 62,679,756.81/10,539.11
  6. Step 6: Final answer
    x = 5,947.35

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