Home / 10,190.55-15,288.03-3,170.43

Finding the Fourth Proportional to 10,190.55, 15,288.03 and 3,170.43

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Solution

The fourth proportional to 10,190.55, 15,288.03 and 3,170.43 is: 4,756.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,190.55 : 15,288.03 = 3,170.43 : x
  2. Step 2: Convert to fraction form
    10,190.55/15,288.03 = 3,170.43/x
  3. Step 3: Cross multiply
    10,190.55x = 15,288.03 × 3,170.43
  4. Step 4: Simplify right side
    10,190.55x = 48,469,628.95
  5. Step 5: Solve for x
    x = 48,469,628.95/10,190.55
  6. Step 6: Final answer
    x = 4,756.33

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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.