Home / 11,822.80-17,734.20-5,990.80

Finding the Fourth Proportional to 11,822.80, 17,734.20 and 5,990.80

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Solution

The fourth proportional to 11,822.80, 17,734.20 and 5,990.80 is: 8,986.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,822.80 : 17,734.20 = 5,990.80 : x
  2. Step 2: Convert to fraction form
    11,822.80/17,734.20 = 5,990.80/x
  3. Step 3: Cross multiply
    11,822.80x = 17,734.20 × 5,990.80
  4. Step 4: Simplify right side
    11,822.80x = 106,242,045.36
  5. Step 5: Solve for x
    x = 106,242,045.36/11,822.80
  6. Step 6: Final answer
    x = 8,986.20

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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.