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Finding the Fourth Proportional to 10,651.66, 15,979.79 and 4,077.84

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Solution

The fourth proportional to 10,651.66, 15,979.79 and 4,077.84 is: 6,117.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,651.66 : 15,979.79 = 4,077.84 : x
  2. Step 2: Convert to fraction form
    10,651.66/15,979.79 = 4,077.84/x
  3. Step 3: Cross multiply
    10,651.66x = 15,979.79 × 4,077.84
  4. Step 4: Simplify right side
    10,651.66x = 65,163,102.71
  5. Step 5: Solve for x
    x = 65,163,102.71/10,651.66
  6. Step 6: Final answer
    x = 6,117.65

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