Home / 13,212.38-19,818.53-3,351.64

Finding the Fourth Proportional to 13,212.38, 19,818.53 and 3,351.64

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Solution

The fourth proportional to 13,212.38, 19,818.53 and 3,351.64 is: 5,027.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.38 : 19,818.53 = 3,351.64 : x
  2. Step 2: Convert to fraction form
    13,212.38/19,818.53 = 3,351.64/x
  3. Step 3: Cross multiply
    13,212.38x = 19,818.53 × 3,351.64
  4. Step 4: Simplify right side
    13,212.38x = 66,424,478.80
  5. Step 5: Solve for x
    x = 66,424,478.80/13,212.38
  6. Step 6: Final answer
    x = 5,027.44

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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.