Home / 13,213.45-18,234.82-7,244.77

Finding the Fourth Proportional to 13,213.45, 18,234.82 and 7,244.77

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Solution

The fourth proportional to 13,213.45, 18,234.82 and 7,244.77 is: 9,997.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.45 : 18,234.82 = 7,244.77 : x
  2. Step 2: Convert to fraction form
    13,213.45/18,234.82 = 7,244.77/x
  3. Step 3: Cross multiply
    13,213.45x = 18,234.82 × 7,244.77
  4. Step 4: Simplify right side
    13,213.45x = 132,107,076.89
  5. Step 5: Solve for x
    x = 132,107,076.89/13,213.45
  6. Step 6: Final answer
    x = 9,997.92

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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.