Home / 12,455.91-18,683.82-4,136.57

Finding the Fourth Proportional to 12,455.91, 18,683.82 and 4,136.57

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Solution

The fourth proportional to 12,455.91, 18,683.82 and 4,136.57 is: 6,204.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,455.91 : 18,683.82 = 4,136.57 : x
  2. Step 2: Convert to fraction form
    12,455.91/18,683.82 = 4,136.57/x
  3. Step 3: Cross multiply
    12,455.91x = 18,683.82 × 4,136.57
  4. Step 4: Simplify right side
    12,455.91x = 77,286,835.88
  5. Step 5: Solve for x
    x = 77,286,835.88/12,455.91
  6. Step 6: Final answer
    x = 6,204.83

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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.