Home / 12,213.60-18,323.19-4,422.42

Finding the Fourth Proportional to 12,213.60, 18,323.19 and 4,422.42

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Solution

The fourth proportional to 12,213.60, 18,323.19 and 4,422.42 is: 6,634.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,213.60 : 18,323.19 = 4,422.42 : x
  2. Step 2: Convert to fraction form
    12,213.60/18,323.19 = 4,422.42/x
  3. Step 3: Cross multiply
    12,213.60x = 18,323.19 × 4,422.42
  4. Step 4: Simplify right side
    12,213.60x = 81,032,841.92
  5. Step 5: Solve for x
    x = 81,032,841.92/12,213.60
  6. Step 6: Final answer
    x = 6,634.64

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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.