Home / 7,879.24-11,814.72-3,494.80

Finding the Fourth Proportional to 7,879.24, 11,814.72 and 3,494.80

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Solution

The fourth proportional to 7,879.24, 11,814.72 and 3,494.80 is: 5,240.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.24 : 11,814.72 = 3,494.80 : x
  2. Step 2: Convert to fraction form
    7,879.24/11,814.72 = 3,494.80/x
  3. Step 3: Cross multiply
    7,879.24x = 11,814.72 × 3,494.80
  4. Step 4: Simplify right side
    7,879.24x = 41,290,083.46
  5. Step 5: Solve for x
    x = 41,290,083.46/7,879.24
  6. Step 6: Final answer
    x = 5,240.36

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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.