Home / 7,723.92-11,578.70-4,208.78

Finding the Fourth Proportional to 7,723.92, 11,578.70 and 4,208.78

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Solution

The fourth proportional to 7,723.92, 11,578.70 and 4,208.78 is: 6,309.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,723.92 : 11,578.70 = 4,208.78 : x
  2. Step 2: Convert to fraction form
    7,723.92/11,578.70 = 4,208.78/x
  3. Step 3: Cross multiply
    7,723.92x = 11,578.70 × 4,208.78
  4. Step 4: Simplify right side
    7,723.92x = 48,732,200.99
  5. Step 5: Solve for x
    x = 48,732,200.99/7,723.92
  6. Step 6: Final answer
    x = 6,309.26

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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.