Home / 6,820.20-10,214.10-4,195.80

Finding the Fourth Proportional to 6,820.20, 10,214.10 and 4,195.80

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Solution

The fourth proportional to 6,820.20, 10,214.10 and 4,195.80 is: 6,283.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,820.20 : 10,214.10 = 4,195.80 : x
  2. Step 2: Convert to fraction form
    6,820.20/10,214.10 = 4,195.80/x
  3. Step 3: Cross multiply
    6,820.20x = 10,214.10 × 4,195.80
  4. Step 4: Simplify right side
    6,820.20x = 42,856,320.78
  5. Step 5: Solve for x
    x = 42,856,320.78/6,820.20
  6. Step 6: Final answer
    x = 6,283.73

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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.