Home / 12,100.13-18,149.37-3,335.12

Finding the Fourth Proportional to 12,100.13, 18,149.37 and 3,335.12

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Solution

The fourth proportional to 12,100.13, 18,149.37 and 3,335.12 is: 5,002.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,100.13 : 18,149.37 = 3,335.12 : x
  2. Step 2: Convert to fraction form
    12,100.13/18,149.37 = 3,335.12/x
  3. Step 3: Cross multiply
    12,100.13x = 18,149.37 × 3,335.12
  4. Step 4: Simplify right side
    12,100.13x = 60,530,236.13
  5. Step 5: Solve for x
    x = 60,530,236.13/12,100.13
  6. Step 6: Final answer
    x = 5,002.45

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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.