Home / 12,004.92-18,007.40-3,239.60

Finding the Fourth Proportional to 12,004.92, 18,007.40 and 3,239.60

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Solution

The fourth proportional to 12,004.92, 18,007.40 and 3,239.60 is: 4,859.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,004.92 : 18,007.40 = 3,239.60 : x
  2. Step 2: Convert to fraction form
    12,004.92/18,007.40 = 3,239.60/x
  3. Step 3: Cross multiply
    12,004.92x = 18,007.40 × 3,239.60
  4. Step 4: Simplify right side
    12,004.92x = 58,336,773.04
  5. Step 5: Solve for x
    x = 58,336,773.04/12,004.92
  6. Step 6: Final answer
    x = 4,859.41

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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.