Home / 7,879.24-11,807.70-4,370.78

Finding the Fourth Proportional to 7,879.24, 11,807.70 and 4,370.78

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Solution

The fourth proportional to 7,879.24, 11,807.70 and 4,370.78 is: 6,549.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,879.24 : 11,807.70 = 4,370.78 : x
  2. Step 2: Convert to fraction form
    7,879.24/11,807.70 = 4,370.78/x
  3. Step 3: Cross multiply
    7,879.24x = 11,807.70 × 4,370.78
  4. Step 4: Simplify right side
    7,879.24x = 51,608,859.01
  5. Step 5: Solve for x
    x = 51,608,859.01/7,879.24
  6. Step 6: Final answer
    x = 6,549.98

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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.