Home / 10,163.09-15,245.13-3,147.95

Finding the Fourth Proportional to 10,163.09, 15,245.13 and 3,147.95

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Solution

The fourth proportional to 10,163.09, 15,245.13 and 3,147.95 is: 4,722.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,163.09 : 15,245.13 = 3,147.95 : x
  2. Step 2: Convert to fraction form
    10,163.09/15,245.13 = 3,147.95/x
  3. Step 3: Cross multiply
    10,163.09x = 15,245.13 × 3,147.95
  4. Step 4: Simplify right side
    10,163.09x = 47,990,906.98
  5. Step 5: Solve for x
    x = 47,990,906.98/10,163.09
  6. Step 6: Final answer
    x = 4,722.08

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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.