Home / 13,213.26-18,234.48-7,245.06

Finding the Fourth Proportional to 13,213.26, 18,234.48 and 7,245.06

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Solution

The fourth proportional to 13,213.26, 18,234.48 and 7,245.06 is: 9,998.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.26 : 18,234.48 = 7,245.06 : x
  2. Step 2: Convert to fraction form
    13,213.26/18,234.48 = 7,245.06/x
  3. Step 3: Cross multiply
    13,213.26x = 18,234.48 × 7,245.06
  4. Step 4: Simplify right side
    13,213.26x = 132,109,901.67
  5. Step 5: Solve for x
    x = 132,109,901.67/13,213.26
  6. Step 6: Final answer
    x = 9,998.28

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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.