Home / 11,136.70-16,711.63-4,121.64

Finding the Fourth Proportional to 11,136.70, 16,711.63 and 4,121.64

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Solution

The fourth proportional to 11,136.70, 16,711.63 and 4,121.64 is: 6,184.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136.70 : 16,711.63 = 4,121.64 : x
  2. Step 2: Convert to fraction form
    11,136.70/16,711.63 = 4,121.64/x
  3. Step 3: Cross multiply
    11,136.70x = 16,711.63 × 4,121.64
  4. Step 4: Simplify right side
    11,136.70x = 68,879,323.39
  5. Step 5: Solve for x
    x = 68,879,323.39/11,136.70
  6. Step 6: Final answer
    x = 6,184.90

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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.