Home / 10,198.28-15,298.85-3,178.82

Finding the Fourth Proportional to 10,198.28, 15,298.85 and 3,178.82

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Solution

The fourth proportional to 10,198.28, 15,298.85 and 3,178.82 is: 4,768.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,198.28 : 15,298.85 = 3,178.82 : x
  2. Step 2: Convert to fraction form
    10,198.28/15,298.85 = 3,178.82/x
  3. Step 3: Cross multiply
    10,198.28x = 15,298.85 × 3,178.82
  4. Step 4: Simplify right side
    10,198.28x = 48,632,336.55
  5. Step 5: Solve for x
    x = 48,632,336.55/10,198.28
  6. Step 6: Final answer
    x = 4,768.68

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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.