Home / 11,948.28-17,920.44-3,183.36

Finding the Fourth Proportional to 11,948.28, 17,920.44 and 3,183.36

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Solution

The fourth proportional to 11,948.28, 17,920.44 and 3,183.36 is: 4,774.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.28 : 17,920.44 = 3,183.36 : x
  2. Step 2: Convert to fraction form
    11,948.28/17,920.44 = 3,183.36/x
  3. Step 3: Cross multiply
    11,948.28x = 17,920.44 × 3,183.36
  4. Step 4: Simplify right side
    11,948.28x = 57,047,211.88
  5. Step 5: Solve for x
    x = 57,047,211.88/11,948.28
  6. Step 6: Final answer
    x = 4,774.51

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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.