Home / 12,819.26-19,230.92-4,921.46

Finding the Fourth Proportional to 12,819.26, 19,230.92 and 4,921.46

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Solution

The fourth proportional to 12,819.26, 19,230.92 and 4,921.46 is: 7,382.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,819.26 : 19,230.92 = 4,921.46 : x
  2. Step 2: Convert to fraction form
    12,819.26/19,230.92 = 4,921.46/x
  3. Step 3: Cross multiply
    12,819.26x = 19,230.92 × 4,921.46
  4. Step 4: Simplify right side
    12,819.26x = 94,644,173.35
  5. Step 5: Solve for x
    x = 94,644,173.35/12,819.26
  6. Step 6: Final answer
    x = 7,382.97

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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.