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Finding the Fourth Proportional to 18,297.64, 27,447.77 and 8,945.44

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Solution

The fourth proportional to 18,297.64, 27,447.77 and 8,945.44 is: 13,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,297.64 : 27,447.77 = 8,945.44 : x
  2. Step 2: Convert to fraction form
    18,297.64/27,447.77 = 8,945.44/x
  3. Step 3: Cross multiply
    18,297.64x = 27,447.77 × 8,945.44
  4. Step 4: Simplify right side
    18,297.64x = 245,532,379.67
  5. Step 5: Solve for x
    x = 245,532,379.67/18,297.64
  6. Step 6: Final answer
    x = 13,418.80

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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.