Home / 12,195.42-18,293.76-3,876.09

Finding the Fourth Proportional to 12,195.42, 18,293.76 and 3,876.09

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Solution

The fourth proportional to 12,195.42, 18,293.76 and 3,876.09 is: 5,814.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,195.42 : 18,293.76 = 3,876.09 : x
  2. Step 2: Convert to fraction form
    12,195.42/18,293.76 = 3,876.09/x
  3. Step 3: Cross multiply
    12,195.42x = 18,293.76 × 3,876.09
  4. Step 4: Simplify right side
    12,195.42x = 70,908,260.20
  5. Step 5: Solve for x
    x = 70,908,260.20/12,195.42
  6. Step 6: Final answer
    x = 5,814.34

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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.