Home / 10,811.75-16,205.77-4,230.70

Finding the Fourth Proportional to 10,811.75, 16,205.77 and 4,230.70

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Solution

The fourth proportional to 10,811.75, 16,205.77 and 4,230.70 is: 6,341.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,811.75 : 16,205.77 = 4,230.70 : x
  2. Step 2: Convert to fraction form
    10,811.75/16,205.77 = 4,230.70/x
  3. Step 3: Cross multiply
    10,811.75x = 16,205.77 × 4,230.70
  4. Step 4: Simplify right side
    10,811.75x = 68,561,751.14
  5. Step 5: Solve for x
    x = 68,561,751.14/10,811.75
  6. Step 6: Final answer
    x = 6,341.41

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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.