Home / 12,814.94-19,222.99-3,929.62

Finding the Fourth Proportional to 12,814.94, 19,222.99 and 3,929.62

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Solution

The fourth proportional to 12,814.94, 19,222.99 and 3,929.62 is: 5,894.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,814.94 : 19,222.99 = 3,929.62 : x
  2. Step 2: Convert to fraction form
    12,814.94/19,222.99 = 3,929.62/x
  3. Step 3: Cross multiply
    12,814.94x = 19,222.99 × 3,929.62
  4. Step 4: Simplify right side
    12,814.94x = 75,539,103.85
  5. Step 5: Solve for x
    x = 75,539,103.85/12,814.94
  6. Step 6: Final answer
    x = 5,894.61

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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.