Home / 12,003.13-18,006.21-4,107.18

Finding the Fourth Proportional to 12,003.13, 18,006.21 and 4,107.18

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Solution

The fourth proportional to 12,003.13, 18,006.21 and 4,107.18 is: 6,161.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,003.13 : 18,006.21 = 4,107.18 : x
  2. Step 2: Convert to fraction form
    12,003.13/18,006.21 = 4,107.18/x
  3. Step 3: Cross multiply
    12,003.13x = 18,006.21 × 4,107.18
  4. Step 4: Simplify right side
    12,003.13x = 73,954,745.59
  5. Step 5: Solve for x
    x = 73,954,745.59/12,003.13
  6. Step 6: Final answer
    x = 6,161.29

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Half scale
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Double scale
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Similar ratio
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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.