Home / 12,249.09-18,366.26-8,305.20

Finding the Fourth Proportional to 12,249.09, 18,366.26 and 8,305.20

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Solution

The fourth proportional to 12,249.09, 18,366.26 and 8,305.20 is: 12,452.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,249.09 : 18,366.26 = 8,305.20 : x
  2. Step 2: Convert to fraction form
    12,249.09/18,366.26 = 8,305.20/x
  3. Step 3: Cross multiply
    12,249.09x = 18,366.26 × 8,305.20
  4. Step 4: Simplify right side
    12,249.09x = 152,535,421.03
  5. Step 5: Solve for x
    x = 152,535,421.03/12,249.09
  6. Step 6: Final answer
    x = 12,452.80

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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.