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Finding the Fourth Proportional to 10,497.16, 14,485.80 and 5,781.36

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Solution

The fourth proportional to 10,497.16, 14,485.80 and 5,781.36 is: 7,978.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,497.16 : 14,485.80 = 5,781.36 : x
  2. Step 2: Convert to fraction form
    10,497.16/14,485.80 = 5,781.36/x
  3. Step 3: Cross multiply
    10,497.16x = 14,485.80 × 5,781.36
  4. Step 4: Simplify right side
    10,497.16x = 83,747,624.69
  5. Step 5: Solve for x
    x = 83,747,624.69/10,497.16
  6. Step 6: Final answer
    x = 7,978.12

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