Home / 14,163.92-21,246.24-7,920.44

Finding the Fourth Proportional to 14,163.92, 21,246.24 and 7,920.44

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Solution

The fourth proportional to 14,163.92, 21,246.24 and 7,920.44 is: 11,880.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,163.92 : 21,246.24 = 7,920.44 : x
  2. Step 2: Convert to fraction form
    14,163.92/21,246.24 = 7,920.44/x
  3. Step 3: Cross multiply
    14,163.92x = 21,246.24 × 7,920.44
  4. Step 4: Simplify right side
    14,163.92x = 168,279,569.15
  5. Step 5: Solve for x
    x = 168,279,569.15/14,163.92
  6. Step 6: Final answer
    x = 11,880.86

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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.