Home / 7,479.05-11,221.20-4,194.90

Finding the Fourth Proportional to 7,479.05, 11,221.20 and 4,194.90

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Solution

The fourth proportional to 7,479.05, 11,221.20 and 4,194.90 is: 6,293.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.05 : 11,221.20 = 4,194.90 : x
  2. Step 2: Convert to fraction form
    7,479.05/11,221.20 = 4,194.90/x
  3. Step 3: Cross multiply
    7,479.05x = 11,221.20 × 4,194.90
  4. Step 4: Simplify right side
    7,479.05x = 47,071,811.88
  5. Step 5: Solve for x
    x = 47,071,811.88/7,479.05
  6. Step 6: Final answer
    x = 6,293.83

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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.