Home / 7,786.86-10,745.55-4,644.78

Finding the Fourth Proportional to 7,786.86, 10,745.55 and 4,644.78

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Solution

The fourth proportional to 7,786.86, 10,745.55 and 4,644.78 is: 6,409.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,786.86 : 10,745.55 = 4,644.78 : x
  2. Step 2: Convert to fraction form
    7,786.86/10,745.55 = 4,644.78/x
  3. Step 3: Cross multiply
    7,786.86x = 10,745.55 × 4,644.78
  4. Step 4: Simplify right side
    7,786.86x = 49,910,715.73
  5. Step 5: Solve for x
    x = 49,910,715.73/7,786.86
  6. Step 6: Final answer
    x = 6,409.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.