Home / 11,909.27-16,425.27-8,136.69

Finding the Fourth Proportional to 11,909.27, 16,425.27 and 8,136.69

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Solution

The fourth proportional to 11,909.27, 16,425.27 and 8,136.69 is: 11,222.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,909.27 : 16,425.27 = 8,136.69 : x
  2. Step 2: Convert to fraction form
    11,909.27/16,425.27 = 8,136.69/x
  3. Step 3: Cross multiply
    11,909.27x = 16,425.27 × 8,136.69
  4. Step 4: Simplify right side
    11,909.27x = 133,647,330.16
  5. Step 5: Solve for x
    x = 133,647,330.16/11,909.27
  6. Step 6: Final answer
    x = 11,222.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.