Home / 8,136.42-12,207.84-3,457.44

Finding the Fourth Proportional to 8,136.42, 12,207.84 and 3,457.44

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Solution

The fourth proportional to 8,136.42, 12,207.84 and 3,457.44 is: 5,187.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.42 : 12,207.84 = 3,457.44 : x
  2. Step 2: Convert to fraction form
    8,136.42/12,207.84 = 3,457.44/x
  3. Step 3: Cross multiply
    8,136.42x = 12,207.84 × 3,457.44
  4. Step 4: Simplify right side
    8,136.42x = 42,207,874.33
  5. Step 5: Solve for x
    x = 42,207,874.33/8,136.42
  6. Step 6: Final answer
    x = 5,187.52

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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.