Home / 11,228.20-16,853.10-5,687.80

Finding the Fourth Proportional to 11,228.20, 16,853.10 and 5,687.80

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Solution

The fourth proportional to 11,228.20, 16,853.10 and 5,687.80 is: 8,537.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,228.20 : 16,853.10 = 5,687.80 : x
  2. Step 2: Convert to fraction form
    11,228.20/16,853.10 = 5,687.80/x
  3. Step 3: Cross multiply
    11,228.20x = 16,853.10 × 5,687.80
  4. Step 4: Simplify right side
    11,228.20x = 95,857,062.18
  5. Step 5: Solve for x
    x = 95,857,062.18/11,228.20
  6. Step 6: Final answer
    x = 8,537.17

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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.