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Finding the Fourth Proportional to 11,168.56, 16,752.81 and 5,307.40

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Solution

The fourth proportional to 11,168.56, 16,752.81 and 5,307.40 is: 7,961.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,168.56 : 16,752.81 = 5,307.40 : x
  2. Step 2: Convert to fraction form
    11,168.56/16,752.81 = 5,307.40/x
  3. Step 3: Cross multiply
    11,168.56x = 16,752.81 × 5,307.40
  4. Step 4: Simplify right side
    11,168.56x = 88,913,863.79
  5. Step 5: Solve for x
    x = 88,913,863.79/11,168.56
  6. Step 6: Final answer
    x = 7,961.09

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