Home / 11,278.97-16,913.12-3,378.44

Finding the Fourth Proportional to 11,278.97, 16,913.12 and 3,378.44

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Solution

The fourth proportional to 11,278.97, 16,913.12 and 3,378.44 is: 5,066.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.97 : 16,913.12 = 3,378.44 : x
  2. Step 2: Convert to fraction form
    11,278.97/16,913.12 = 3,378.44/x
  3. Step 3: Cross multiply
    11,278.97x = 16,913.12 × 3,378.44
  4. Step 4: Simplify right side
    11,278.97x = 57,139,859.68
  5. Step 5: Solve for x
    x = 57,139,859.68/11,278.97
  6. Step 6: Final answer
    x = 5,066.06

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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.