Home / 11,228.20-16,844.70-3,437.80

Finding the Fourth Proportional to 11,228.20, 16,844.70 and 3,437.80

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Solution

The fourth proportional to 11,228.20, 16,844.70 and 3,437.80 is: 5,157.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,228.20 : 16,844.70 = 3,437.80 : x
  2. Step 2: Convert to fraction form
    11,228.20/16,844.70 = 3,437.80/x
  3. Step 3: Cross multiply
    11,228.20x = 16,844.70 × 3,437.80
  4. Step 4: Simplify right side
    11,228.20x = 57,908,709.66
  5. Step 5: Solve for x
    x = 57,908,709.66/11,228.20
  6. Step 6: Final answer
    x = 5,157.43

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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.