Home / 10,775.20-16,162.77-3,379.70

Finding the Fourth Proportional to 10,775.20, 16,162.77 and 3,379.70

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Solution

The fourth proportional to 10,775.20, 16,162.77 and 3,379.70 is: 5,069.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,775.20 : 16,162.77 = 3,379.70 : x
  2. Step 2: Convert to fraction form
    10,775.20/16,162.77 = 3,379.70/x
  3. Step 3: Cross multiply
    10,775.20x = 16,162.77 × 3,379.70
  4. Step 4: Simplify right side
    10,775.20x = 54,625,313.77
  5. Step 5: Solve for x
    x = 54,625,313.77/10,775.20
  6. Step 6: Final answer
    x = 5,069.54

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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.