Home / 13,222.12-18,234.44-8,750.38

Finding the Fourth Proportional to 13,222.12, 18,234.44 and 8,750.38

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Solution

The fourth proportional to 13,222.12, 18,234.44 and 8,750.38 is: 12,067.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.12 : 18,234.44 = 8,750.38 : x
  2. Step 2: Convert to fraction form
    13,222.12/18,234.44 = 8,750.38/x
  3. Step 3: Cross multiply
    13,222.12x = 18,234.44 × 8,750.38
  4. Step 4: Simplify right side
    13,222.12x = 159,558,279.09
  5. Step 5: Solve for x
    x = 159,558,279.09/13,222.12
  6. Step 6: Final answer
    x = 12,067.53

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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.