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Finding the Fourth Proportional to 10,842.91, 16,272.59 and 7,509.28

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Solution

The fourth proportional to 10,842.91, 16,272.59 and 7,509.28 is: 11,269.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,842.91 : 16,272.59 = 7,509.28 : x
  2. Step 2: Convert to fraction form
    10,842.91/16,272.59 = 7,509.28/x
  3. Step 3: Cross multiply
    10,842.91x = 16,272.59 × 7,509.28
  4. Step 4: Simplify right side
    10,842.91x = 122,195,434.64
  5. Step 5: Solve for x
    x = 122,195,434.64/10,842.91
  6. Step 6: Final answer
    x = 11,269.62

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