Home / 8,136.20-12,204.30-4,240.10

Finding the Fourth Proportional to 8,136.20, 12,204.30 and 4,240.10

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Solution

The fourth proportional to 8,136.20, 12,204.30 and 4,240.10 is: 6,360.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.20 : 12,204.30 = 4,240.10 : x
  2. Step 2: Convert to fraction form
    8,136.20/12,204.30 = 4,240.10/x
  3. Step 3: Cross multiply
    8,136.20x = 12,204.30 × 4,240.10
  4. Step 4: Simplify right side
    8,136.20x = 51,747,452.43
  5. Step 5: Solve for x
    x = 51,747,452.43/8,136.20
  6. Step 6: Final answer
    x = 6,360.15

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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.