Home / 8,162.80-12,242.70-3,719.44

Finding the Fourth Proportional to 8,162.80, 12,242.70 and 3,719.44

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Solution

The fourth proportional to 8,162.80, 12,242.70 and 3,719.44 is: 5,578.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,162.80 : 12,242.70 = 3,719.44 : x
  2. Step 2: Convert to fraction form
    8,162.80/12,242.70 = 3,719.44/x
  3. Step 3: Cross multiply
    8,162.80x = 12,242.70 × 3,719.44
  4. Step 4: Simplify right side
    8,162.80x = 45,535,988.09
  5. Step 5: Solve for x
    x = 45,535,988.09/8,162.80
  6. Step 6: Final answer
    x = 5,578.48

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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.