Home / 13,212.18-19,818.62-3,851.97

Finding the Fourth Proportional to 13,212.18, 19,818.62 and 3,851.97

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Solution

The fourth proportional to 13,212.18, 19,818.62 and 3,851.97 is: 5,778.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.18 : 19,818.62 = 3,851.97 : x
  2. Step 2: Convert to fraction form
    13,212.18/19,818.62 = 3,851.97/x
  3. Step 3: Cross multiply
    13,212.18x = 19,818.62 × 3,851.97
  4. Step 4: Simplify right side
    13,212.18x = 76,340,700.08
  5. Step 5: Solve for x
    x = 76,340,700.08/13,212.18
  6. Step 6: Final answer
    x = 5,778.06

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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.