Home / 12,229.50-18,331.82-4,823.80

Finding the Fourth Proportional to 12,229.50, 18,331.82 and 4,823.80

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Solution

The fourth proportional to 12,229.50, 18,331.82 and 4,823.80 is: 7,230.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,229.50 : 18,331.82 = 4,823.80 : x
  2. Step 2: Convert to fraction form
    12,229.50/18,331.82 = 4,823.80/x
  3. Step 3: Cross multiply
    12,229.50x = 18,331.82 × 4,823.80
  4. Step 4: Simplify right side
    12,229.50x = 88,429,033.32
  5. Step 5: Solve for x
    x = 88,429,033.32/12,229.50
  6. Step 6: Final answer
    x = 7,230.80

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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.