Home / 15,181.19-20,949.38-11,200.85

Finding the Fourth Proportional to 15,181.19, 20,949.38 and 11,200.85

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Solution

The fourth proportional to 15,181.19, 20,949.38 and 11,200.85 is: 15,456.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,181.19 : 20,949.38 = 11,200.85 : x
  2. Step 2: Convert to fraction form
    15,181.19/20,949.38 = 11,200.85/x
  3. Step 3: Cross multiply
    15,181.19x = 20,949.38 × 11,200.85
  4. Step 4: Simplify right side
    15,181.19x = 234,650,885.79
  5. Step 5: Solve for x
    x = 234,650,885.79/15,181.19
  6. Step 6: Final answer
    x = 15,456.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.