Home / 12,003.45-18,005.19-3,238.37

Finding the Fourth Proportional to 12,003.45, 18,005.19 and 3,238.37

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Solution

The fourth proportional to 12,003.45, 18,005.19 and 3,238.37 is: 4,857.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,003.45 : 18,005.19 = 3,238.37 : x
  2. Step 2: Convert to fraction form
    12,003.45/18,005.19 = 3,238.37/x
  3. Step 3: Cross multiply
    12,003.45x = 18,005.19 × 3,238.37
  4. Step 4: Simplify right side
    12,003.45x = 58,307,512.15
  5. Step 5: Solve for x
    x = 58,307,512.15/12,003.45
  6. Step 6: Final answer
    x = 4,857.56

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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.