Home / 11,986.79-17,976.06-5,753.84

Finding the Fourth Proportional to 11,986.79, 17,976.06 and 5,753.84

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Solution

The fourth proportional to 11,986.79, 17,976.06 and 5,753.84 is: 8,628.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,986.79 : 17,976.06 = 5,753.84 : x
  2. Step 2: Convert to fraction form
    11,986.79/17,976.06 = 5,753.84/x
  3. Step 3: Cross multiply
    11,986.79x = 17,976.06 × 5,753.84
  4. Step 4: Simplify right side
    11,986.79x = 103,431,283.19
  5. Step 5: Solve for x
    x = 103,431,283.19/11,986.79
  6. Step 6: Final answer
    x = 8,628.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.