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Finding the Fourth Proportional to 9,986.70, 14,992.20 and 5,053.80

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Solution

The fourth proportional to 9,986.70, 14,992.20 and 5,053.80 is: 7,586.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986.70 : 14,992.20 = 5,053.80 : x
  2. Step 2: Convert to fraction form
    9,986.70/14,992.20 = 5,053.80/x
  3. Step 3: Cross multiply
    9,986.70x = 14,992.20 × 5,053.80
  4. Step 4: Simplify right side
    9,986.70x = 75,767,580.36
  5. Step 5: Solve for x
    x = 75,767,580.36/9,986.70
  6. Step 6: Final answer
    x = 7,586.85

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