Home / 8,136.24-12,204.36-3,206.40

Finding the Fourth Proportional to 8,136.24, 12,204.36 and 3,206.40

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Solution

The fourth proportional to 8,136.24, 12,204.36 and 3,206.40 is: 4,809.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.24 : 12,204.36 = 3,206.40 : x
  2. Step 2: Convert to fraction form
    8,136.24/12,204.36 = 3,206.40/x
  3. Step 3: Cross multiply
    8,136.24x = 12,204.36 × 3,206.40
  4. Step 4: Simplify right side
    8,136.24x = 39,132,059.90
  5. Step 5: Solve for x
    x = 39,132,059.90/8,136.24
  6. Step 6: Final answer
    x = 4,809.60

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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.