Home / 12,922.85-19,371.97-4,151.61

Finding the Fourth Proportional to 12,922.85, 19,371.97 and 4,151.61

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Solution

The fourth proportional to 12,922.85, 19,371.97 and 4,151.61 is: 6,223.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,922.85 : 19,371.97 = 4,151.61 : x
  2. Step 2: Convert to fraction form
    12,922.85/19,371.97 = 4,151.61/x
  3. Step 3: Cross multiply
    12,922.85x = 19,371.97 × 4,151.61
  4. Step 4: Simplify right side
    12,922.85x = 80,424,853.99
  5. Step 5: Solve for x
    x = 80,424,853.99/12,922.85
  6. Step 6: Final answer
    x = 6,223.46

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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.