Home / 7,926.66-11,879.49-4,220.91

Finding the Fourth Proportional to 7,926.66, 11,879.49 and 4,220.91

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Solution

The fourth proportional to 7,926.66, 11,879.49 and 4,220.91 is: 6,325.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,926.66 : 11,879.49 = 4,220.91 : x
  2. Step 2: Convert to fraction form
    7,926.66/11,879.49 = 4,220.91/x
  3. Step 3: Cross multiply
    7,926.66x = 11,879.49 × 4,220.91
  4. Step 4: Simplify right side
    7,926.66x = 50,142,273.96
  5. Step 5: Solve for x
    x = 50,142,273.96/7,926.66
  6. Step 6: Final answer
    x = 6,325.78

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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.