Home / 11,245.32-16,866.90-3,454.20

Finding the Fourth Proportional to 11,245.32, 16,866.90 and 3,454.20

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Solution

The fourth proportional to 11,245.32, 16,866.90 and 3,454.20 is: 5,180.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,245.32 : 16,866.90 = 3,454.20 : x
  2. Step 2: Convert to fraction form
    11,245.32/16,866.90 = 3,454.20/x
  3. Step 3: Cross multiply
    11,245.32x = 16,866.90 × 3,454.20
  4. Step 4: Simplify right side
    11,245.32x = 58,261,645.98
  5. Step 5: Solve for x
    x = 58,261,645.98/11,245.32
  6. Step 6: Final answer
    x = 5,180.97

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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.