Home / 13,212.64-19,819.02-3,351.92

Finding the Fourth Proportional to 13,212.64, 19,819.02 and 3,351.92

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Solution

The fourth proportional to 13,212.64, 19,819.02 and 3,351.92 is: 5,027.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.64 : 19,819.02 = 3,351.92 : x
  2. Step 2: Convert to fraction form
    13,212.64/19,819.02 = 3,351.92/x
  3. Step 3: Cross multiply
    13,212.64x = 19,819.02 × 3,351.92
  4. Step 4: Simplify right side
    13,212.64x = 66,431,769.52
  5. Step 5: Solve for x
    x = 66,431,769.52/13,212.64
  6. Step 6: Final answer
    x = 5,027.90

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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.