Home / 8,133.68-12,198.10-3,453.60

Finding the Fourth Proportional to 8,133.68, 12,198.10 and 3,453.60

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Solution

The fourth proportional to 8,133.68, 12,198.10 and 3,453.60 is: 5,179.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,133.68 : 12,198.10 = 3,453.60 : x
  2. Step 2: Convert to fraction form
    8,133.68/12,198.10 = 3,453.60/x
  3. Step 3: Cross multiply
    8,133.68x = 12,198.10 × 3,453.60
  4. Step 4: Simplify right side
    8,133.68x = 42,127,358.16
  5. Step 5: Solve for x
    x = 42,127,358.16/8,133.68
  6. Step 6: Final answer
    x = 5,179.37

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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.