Home / 12,132.25-18,198.34-5,460.94

Finding the Fourth Proportional to 12,132.25, 18,198.34 and 5,460.94

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Solution

The fourth proportional to 12,132.25, 18,198.34 and 5,460.94 is: 8,191.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.25 : 18,198.34 = 5,460.94 : x
  2. Step 2: Convert to fraction form
    12,132.25/18,198.34 = 5,460.94/x
  3. Step 3: Cross multiply
    12,132.25x = 18,198.34 × 5,460.94
  4. Step 4: Simplify right side
    12,132.25x = 99,379,949.57
  5. Step 5: Solve for x
    x = 99,379,949.57/12,132.25
  6. Step 6: Final answer
    x = 8,191.39

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1.5x scale

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.