Home / 11,215.76-16,825.47-3,422.75

Finding the Fourth Proportional to 11,215.76, 16,825.47 and 3,422.75

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Solution

The fourth proportional to 11,215.76, 16,825.47 and 3,422.75 is: 5,134.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,215.76 : 16,825.47 = 3,422.75 : x
  2. Step 2: Convert to fraction form
    11,215.76/16,825.47 = 3,422.75/x
  3. Step 3: Cross multiply
    11,215.76x = 16,825.47 × 3,422.75
  4. Step 4: Simplify right side
    11,215.76x = 57,589,360.33
  5. Step 5: Solve for x
    x = 57,589,360.33/11,215.76
  6. Step 6: Final answer
    x = 5,134.68

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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.