Home / 12,214.35-18,321.66-3,894.30

Finding the Fourth Proportional to 12,214.35, 18,321.66 and 3,894.30

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Solution

The fourth proportional to 12,214.35, 18,321.66 and 3,894.30 is: 5,841.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214.35 : 18,321.66 = 3,894.30 : x
  2. Step 2: Convert to fraction form
    12,214.35/18,321.66 = 3,894.30/x
  3. Step 3: Cross multiply
    12,214.35x = 18,321.66 × 3,894.30
  4. Step 4: Simplify right side
    12,214.35x = 71,350,040.54
  5. Step 5: Solve for x
    x = 71,350,040.54/12,214.35
  6. Step 6: Final answer
    x = 5,841.49

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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.