Home / 8,136.68-12,200.70-5,540.36

Finding the Fourth Proportional to 8,136.68, 12,200.70 and 5,540.36

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Solution

The fourth proportional to 8,136.68, 12,200.70 and 5,540.36 is: 8,307.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.68 : 12,200.70 = 5,540.36 : x
  2. Step 2: Convert to fraction form
    8,136.68/12,200.70 = 5,540.36/x
  3. Step 3: Cross multiply
    8,136.68x = 12,200.70 × 5,540.36
  4. Step 4: Simplify right side
    8,136.68x = 67,596,270.25
  5. Step 5: Solve for x
    x = 67,596,270.25/8,136.68
  6. Step 6: Final answer
    x = 8,307.60

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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.