Home / 12,132.08-18,198.80-3,366.80

Finding the Fourth Proportional to 12,132.08, 18,198.80 and 3,366.80

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Solution

The fourth proportional to 12,132.08, 18,198.80 and 3,366.80 is: 5,050.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.08 : 18,198.80 = 3,366.80 : x
  2. Step 2: Convert to fraction form
    12,132.08/18,198.80 = 3,366.80/x
  3. Step 3: Cross multiply
    12,132.08x = 18,198.80 × 3,366.80
  4. Step 4: Simplify right side
    12,132.08x = 61,271,719.84
  5. Step 5: Solve for x
    x = 61,271,719.84/12,132.08
  6. Step 6: Final answer
    x = 5,050.39

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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.