Home / 6,418.20-9,627.30-6,331.80

Finding the Fourth Proportional to 6,418.20, 9,627.30 and 6,331.80

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Solution

The fourth proportional to 6,418.20, 9,627.30 and 6,331.80 is: 9,497.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,418.20 : 9,627.30 = 6,331.80 : x
  2. Step 2: Convert to fraction form
    6,418.20/9,627.30 = 6,331.80/x
  3. Step 3: Cross multiply
    6,418.20x = 9,627.30 × 6,331.80
  4. Step 4: Simplify right side
    6,418.20x = 60,958,138.14
  5. Step 5: Solve for x
    x = 60,958,138.14/6,418.20
  6. Step 6: Final answer
    x = 9,497.70

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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.