Home / 7,511.24-11,268.45-2,831.15

Finding the Fourth Proportional to 7,511.24, 11,268.45 and 2,831.15

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Solution

The fourth proportional to 7,511.24, 11,268.45 and 2,831.15 is: 4,247.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,511.24 : 11,268.45 = 2,831.15 : x
  2. Step 2: Convert to fraction form
    7,511.24/11,268.45 = 2,831.15/x
  3. Step 3: Cross multiply
    7,511.24x = 11,268.45 × 2,831.15
  4. Step 4: Simplify right side
    7,511.24x = 31,902,700.39
  5. Step 5: Solve for x
    x = 31,902,700.39/7,511.24
  6. Step 6: Final answer
    x = 4,247.33

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