Home / 12,195.23-18,296.55-5,171.58

Finding the Fourth Proportional to 12,195.23, 18,296.55 and 5,171.58

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Solution

The fourth proportional to 12,195.23, 18,296.55 and 5,171.58 is: 7,758.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.23 : 18,296.55 = 5,171.58 : x
  2. Step 2: Convert to fraction form
    12,195.23/18,296.55 = 5,171.58/x
  3. Step 3: Cross multiply
    12,195.23x = 18,296.55 × 5,171.58
  4. Step 4: Simplify right side
    12,195.23x = 94,622,072.05
  5. Step 5: Solve for x
    x = 94,622,072.05/12,195.23
  6. Step 6: Final answer
    x = 7,758.94

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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.