Home / 12,136.93-18,205.29-3,371.83

Finding the Fourth Proportional to 12,136.93, 18,205.29 and 3,371.83

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Solution

The fourth proportional to 12,136.93, 18,205.29 and 3,371.83 is: 5,057.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,136.93 : 18,205.29 = 3,371.83 : x
  2. Step 2: Convert to fraction form
    12,136.93/18,205.29 = 3,371.83/x
  3. Step 3: Cross multiply
    12,136.93x = 18,205.29 × 3,371.83
  4. Step 4: Simplify right side
    12,136.93x = 61,385,142.98
  5. Step 5: Solve for x
    x = 61,385,142.98/12,136.93
  6. Step 6: Final answer
    x = 5,057.72

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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.