Home / 12,149.36-18,224.70-3,830.02

Finding the Fourth Proportional to 12,149.36, 18,224.70 and 3,830.02

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Solution

The fourth proportional to 12,149.36, 18,224.70 and 3,830.02 is: 5,745.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.36 : 18,224.70 = 3,830.02 : x
  2. Step 2: Convert to fraction form
    12,149.36/18,224.70 = 3,830.02/x
  3. Step 3: Cross multiply
    12,149.36x = 18,224.70 × 3,830.02
  4. Step 4: Simplify right side
    12,149.36x = 69,800,965.49
  5. Step 5: Solve for x
    x = 69,800,965.49/12,149.36
  6. Step 6: Final answer
    x = 5,745.24

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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.