Home / 11,275.76-16,913.44-3,378.28

Finding the Fourth Proportional to 11,275.76, 16,913.44 and 3,378.28

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Solution

The fourth proportional to 11,275.76, 16,913.44 and 3,378.28 is: 5,067.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.76 : 16,913.44 = 3,378.28 : x
  2. Step 2: Convert to fraction form
    11,275.76/16,913.44 = 3,378.28/x
  3. Step 3: Cross multiply
    11,275.76x = 16,913.44 × 3,378.28
  4. Step 4: Simplify right side
    11,275.76x = 57,138,336.08
  5. Step 5: Solve for x
    x = 57,138,336.08/11,275.76
  6. Step 6: Final answer
    x = 5,067.36

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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.