Home / 12,122.88-18,184.19-3,238.20

Finding the Fourth Proportional to 12,122.88, 18,184.19 and 3,238.20

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Solution

The fourth proportional to 12,122.88, 18,184.19 and 3,238.20 is: 4,857.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,122.88 : 18,184.19 = 3,238.20 : x
  2. Step 2: Convert to fraction form
    12,122.88/18,184.19 = 3,238.20/x
  3. Step 3: Cross multiply
    12,122.88x = 18,184.19 × 3,238.20
  4. Step 4: Simplify right side
    12,122.88x = 58,884,027.87
  5. Step 5: Solve for x
    x = 58,884,027.87/12,122.88
  6. Step 6: Final answer
    x = 4,857.26

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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.