Home / 12,209.35-18,305.16-8,250.80

Finding the Fourth Proportional to 12,209.35, 18,305.16 and 8,250.80

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Solution

The fourth proportional to 12,209.35, 18,305.16 and 8,250.80 is: 12,370.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209.35 : 18,305.16 = 8,250.80 : x
  2. Step 2: Convert to fraction form
    12,209.35/18,305.16 = 8,250.80/x
  3. Step 3: Cross multiply
    12,209.35x = 18,305.16 × 8,250.80
  4. Step 4: Simplify right side
    12,209.35x = 151,032,091.66
  5. Step 5: Solve for x
    x = 151,032,091.66/12,209.35
  6. Step 6: Final answer
    x = 12,370.20

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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.