Home / 11,178.40-16,767.96-3,387.28

Finding the Fourth Proportional to 11,178.40, 16,767.96 and 3,387.28

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Solution

The fourth proportional to 11,178.40, 16,767.96 and 3,387.28 is: 5,081.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,178.40 : 16,767.96 = 3,387.28 : x
  2. Step 2: Convert to fraction form
    11,178.40/16,767.96 = 3,387.28/x
  3. Step 3: Cross multiply
    11,178.40x = 16,767.96 × 3,387.28
  4. Step 4: Simplify right side
    11,178.40x = 56,797,775.55
  5. Step 5: Solve for x
    x = 56,797,775.55/11,178.40
  6. Step 6: Final answer
    x = 5,081.03

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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.