Home / 11,257.80-16,872.66-5,412.84

Finding the Fourth Proportional to 11,257.80, 16,872.66 and 5,412.84

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Solution

The fourth proportional to 11,257.80, 16,872.66 and 5,412.84 is: 8,112.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,257.80 : 16,872.66 = 5,412.84 : x
  2. Step 2: Convert to fraction form
    11,257.80/16,872.66 = 5,412.84/x
  3. Step 3: Cross multiply
    11,257.80x = 16,872.66 × 5,412.84
  4. Step 4: Simplify right side
    11,257.80x = 91,329,008.95
  5. Step 5: Solve for x
    x = 91,329,008.95/11,257.80
  6. Step 6: Final answer
    x = 8,112.51

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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.