Home / 10,879.28-16,320.84-3,861.44

Finding the Fourth Proportional to 10,879.28, 16,320.84 and 3,861.44

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Solution

The fourth proportional to 10,879.28, 16,320.84 and 3,861.44 is: 5,792.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,879.28 : 16,320.84 = 3,861.44 : x
  2. Step 2: Convert to fraction form
    10,879.28/16,320.84 = 3,861.44/x
  3. Step 3: Cross multiply
    10,879.28x = 16,320.84 × 3,861.44
  4. Step 4: Simplify right side
    10,879.28x = 63,021,944.41
  5. Step 5: Solve for x
    x = 63,021,944.41/10,879.28
  6. Step 6: Final answer
    x = 5,792.84

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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.