Home / 7,944.75-11,909.38-3,783.65

Finding the Fourth Proportional to 7,944.75, 11,909.38 and 3,783.65

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Solution

The fourth proportional to 7,944.75, 11,909.38 and 3,783.65 is: 5,671.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,944.75 : 11,909.38 = 3,783.65 : x
  2. Step 2: Convert to fraction form
    7,944.75/11,909.38 = 3,783.65/x
  3. Step 3: Cross multiply
    7,944.75x = 11,909.38 × 3,783.65
  4. Step 4: Simplify right side
    7,944.75x = 45,060,856.63
  5. Step 5: Solve for x
    x = 45,060,856.63/7,944.75
  6. Step 6: Final answer
    x = 5,671.78

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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.