Home / 12,020.97-18,029.37-3,253.86

Finding the Fourth Proportional to 12,020.97, 18,029.37 and 3,253.86

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Solution

The fourth proportional to 12,020.97, 18,029.37 and 3,253.86 is: 4,880.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,020.97 : 18,029.37 = 3,253.86 : x
  2. Step 2: Convert to fraction form
    12,020.97/18,029.37 = 3,253.86/x
  3. Step 3: Cross multiply
    12,020.97x = 18,029.37 × 3,253.86
  4. Step 4: Simplify right side
    12,020.97x = 58,665,045.87
  5. Step 5: Solve for x
    x = 58,665,045.87/12,020.97
  6. Step 6: Final answer
    x = 4,880.23

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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.