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Finding the Fourth Proportional to 10,566.76, 15,855.60 and 5,372.64

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Solution

The fourth proportional to 10,566.76, 15,855.60 and 5,372.64 is: 8,061.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,566.76 : 15,855.60 = 5,372.64 : x
  2. Step 2: Convert to fraction form
    10,566.76/15,855.60 = 5,372.64/x
  3. Step 3: Cross multiply
    10,566.76x = 15,855.60 × 5,372.64
  4. Step 4: Simplify right side
    10,566.76x = 85,186,430.78
  5. Step 5: Solve for x
    x = 85,186,430.78/10,566.76
  6. Step 6: Final answer
    x = 8,061.74

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