Home / 13,213.75-18,234.57-7,245.27

Finding the Fourth Proportional to 13,213.75, 18,234.57 and 7,245.27

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Solution

The fourth proportional to 13,213.75, 18,234.57 and 7,245.27 is: 9,998.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.75 : 18,234.57 = 7,245.27 : x
  2. Step 2: Convert to fraction form
    13,213.75/18,234.57 = 7,245.27/x
  3. Step 3: Cross multiply
    13,213.75x = 18,234.57 × 7,245.27
  4. Step 4: Simplify right side
    13,213.75x = 132,114,382.98
  5. Step 5: Solve for x
    x = 132,114,382.98/13,213.75
  6. Step 6: Final answer
    x = 9,998.25

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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.