Home / 13,234.88-18,272.68-8,204.45

Finding the Fourth Proportional to 13,234.88, 18,272.68 and 8,204.45

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Solution

The fourth proportional to 13,234.88, 18,272.68 and 8,204.45 is: 11,327.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,234.88 : 18,272.68 = 8,204.45 : x
  2. Step 2: Convert to fraction form
    13,234.88/18,272.68 = 8,204.45/x
  3. Step 3: Cross multiply
    13,234.88x = 18,272.68 × 8,204.45
  4. Step 4: Simplify right side
    13,234.88x = 149,917,289.43
  5. Step 5: Solve for x
    x = 149,917,289.43/13,234.88
  6. Step 6: Final answer
    x = 11,327.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.