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Finding the Fourth Proportional to 7,700.76, 11,557.08 and 5,730.84

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Solution

The fourth proportional to 7,700.76, 11,557.08 and 5,730.84 is: 8,600.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,700.76 : 11,557.08 = 5,730.84 : x
  2. Step 2: Convert to fraction form
    7,700.76/11,557.08 = 5,730.84/x
  3. Step 3: Cross multiply
    7,700.76x = 11,557.08 × 5,730.84
  4. Step 4: Simplify right side
    7,700.76x = 66,231,776.35
  5. Step 5: Solve for x
    x = 66,231,776.35/7,700.76
  6. Step 6: Final answer
    x = 8,600.68

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