Home / 11,324.72-16,987.28-3,929.44

Finding the Fourth Proportional to 11,324.72, 16,987.28 and 3,929.44

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Solution

The fourth proportional to 11,324.72, 16,987.28 and 3,929.44 is: 5,894.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,324.72 : 16,987.28 = 3,929.44 : x
  2. Step 2: Convert to fraction form
    11,324.72/16,987.28 = 3,929.44/x
  3. Step 3: Cross multiply
    11,324.72x = 16,987.28 × 3,929.44
  4. Step 4: Simplify right side
    11,324.72x = 66,750,497.52
  5. Step 5: Solve for x
    x = 66,750,497.52/11,324.72
  6. Step 6: Final answer
    x = 5,894.23

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1.5x scale

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.