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Finding the Fourth Proportional to 7,275.70, 10,913.55 and 5,331.70

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Solution

The fourth proportional to 7,275.70, 10,913.55 and 5,331.70 is: 7,997.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,275.70 : 10,913.55 = 5,331.70 : x
  2. Step 2: Convert to fraction form
    7,275.70/10,913.55 = 5,331.70/x
  3. Step 3: Cross multiply
    7,275.70x = 10,913.55 × 5,331.70
  4. Step 4: Simplify right side
    7,275.70x = 58,187,774.54
  5. Step 5: Solve for x
    x = 58,187,774.54/7,275.70
  6. Step 6: Final answer
    x = 7,997.55

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