Home / 12,161.39-18,243.07-3,841.88

Finding the Fourth Proportional to 12,161.39, 18,243.07 and 3,841.88

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Solution

The fourth proportional to 12,161.39, 18,243.07 and 3,841.88 is: 5,763.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.39 : 18,243.07 = 3,841.88 : x
  2. Step 2: Convert to fraction form
    12,161.39/18,243.07 = 3,841.88/x
  3. Step 3: Cross multiply
    12,161.39x = 18,243.07 × 3,841.88
  4. Step 4: Simplify right side
    12,161.39x = 70,087,709.18
  5. Step 5: Solve for x
    x = 70,087,709.18/12,161.39
  6. Step 6: Final answer
    x = 5,763.13

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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.