Home / 8,136.05-12,197.91-6,491.69

Finding the Fourth Proportional to 8,136.05, 12,197.91 and 6,491.69

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Solution

The fourth proportional to 8,136.05, 12,197.91 and 6,491.69 is: 9,732.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.05 : 12,197.91 = 6,491.69 : x
  2. Step 2: Convert to fraction form
    8,136.05/12,197.91 = 6,491.69/x
  3. Step 3: Cross multiply
    8,136.05x = 12,197.91 × 6,491.69
  4. Step 4: Simplify right side
    8,136.05x = 79,184,989.38
  5. Step 5: Solve for x
    x = 79,184,989.38/8,136.05
  6. Step 6: Final answer
    x = 9,732.61

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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.