Home / 12,222.74-18,336.82-4,431.36

Finding the Fourth Proportional to 12,222.74, 18,336.82 and 4,431.36

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Solution

The fourth proportional to 12,222.74, 18,336.82 and 4,431.36 is: 6,648.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,222.74 : 18,336.82 = 4,431.36 : x
  2. Step 2: Convert to fraction form
    12,222.74/18,336.82 = 4,431.36/x
  3. Step 3: Cross multiply
    12,222.74x = 18,336.82 × 4,431.36
  4. Step 4: Simplify right side
    12,222.74x = 81,257,050.68
  5. Step 5: Solve for x
    x = 81,257,050.68/12,222.74
  6. Step 6: Final answer
    x = 6,648.02

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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.