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Finding the Fourth Proportional to 9,888.76, 14,836.86 and 5,141.96

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Solution

The fourth proportional to 9,888.76, 14,836.86 and 5,141.96 is: 7,714.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,888.76 : 14,836.86 = 5,141.96 : x
  2. Step 2: Convert to fraction form
    9,888.76/14,836.86 = 5,141.96/x
  3. Step 3: Cross multiply
    9,888.76x = 14,836.86 × 5,141.96
  4. Step 4: Simplify right side
    9,888.76x = 76,290,540.65
  5. Step 5: Solve for x
    x = 76,290,540.65/9,888.76
  6. Step 6: Final answer
    x = 7,714.87

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