Home / 12,223.12-18,337.44-4,431.92

Finding the Fourth Proportional to 12,223.12, 18,337.44 and 4,431.92

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Solution

The fourth proportional to 12,223.12, 18,337.44 and 4,431.92 is: 6,648.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,223.12 : 18,337.44 = 4,431.92 : x
  2. Step 2: Convert to fraction form
    12,223.12/18,337.44 = 4,431.92/x
  3. Step 3: Cross multiply
    12,223.12x = 18,337.44 × 4,431.92
  4. Step 4: Simplify right side
    12,223.12x = 81,270,067.08
  5. Step 5: Solve for x
    x = 81,270,067.08/12,223.12
  6. Step 6: Final answer
    x = 6,648.88

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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.