Home / 12,106.96-18,161.34-3,341.80

Finding the Fourth Proportional to 12,106.96, 18,161.34 and 3,341.80

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Solution

The fourth proportional to 12,106.96, 18,161.34 and 3,341.80 is: 5,012.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,106.96 : 18,161.34 = 3,341.80 : x
  2. Step 2: Convert to fraction form
    12,106.96/18,161.34 = 3,341.80/x
  3. Step 3: Cross multiply
    12,106.96x = 18,161.34 × 3,341.80
  4. Step 4: Simplify right side
    12,106.96x = 60,691,566.01
  5. Step 5: Solve for x
    x = 60,691,566.01/12,106.96
  6. Step 6: Final answer
    x = 5,012.95

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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.