Home / 12,202.12-18,305.34-4,421.80

Finding the Fourth Proportional to 12,202.12, 18,305.34 and 4,421.80

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Solution

The fourth proportional to 12,202.12, 18,305.34 and 4,421.80 is: 6,633.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,202.12 : 18,305.34 = 4,421.80 : x
  2. Step 2: Convert to fraction form
    12,202.12/18,305.34 = 4,421.80/x
  3. Step 3: Cross multiply
    12,202.12x = 18,305.34 × 4,421.80
  4. Step 4: Simplify right side
    12,202.12x = 80,942,552.41
  5. Step 5: Solve for x
    x = 80,942,552.41/12,202.12
  6. Step 6: Final answer
    x = 6,633.48

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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.