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Finding the Fourth Proportional to 8,530.52, 12,770.87 and 6,890.27

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Solution

The fourth proportional to 8,530.52, 12,770.87 and 6,890.27 is: 10,315.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530.52 : 12,770.87 = 6,890.27 : x
  2. Step 2: Convert to fraction form
    8,530.52/12,770.87 = 6,890.27/x
  3. Step 3: Cross multiply
    8,530.52x = 12,770.87 × 6,890.27
  4. Step 4: Simplify right side
    8,530.52x = 87,994,644.13
  5. Step 5: Solve for x
    x = 87,994,644.13/8,530.52
  6. Step 6: Final answer
    x = 10,315.28

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