Home / 13,108.91-19,663.97-5,213.03

Finding the Fourth Proportional to 13,108.91, 19,663.97 and 5,213.03

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Solution

The fourth proportional to 13,108.91, 19,663.97 and 5,213.03 is: 7,819.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,108.91 : 19,663.97 = 5,213.03 : x
  2. Step 2: Convert to fraction form
    13,108.91/19,663.97 = 5,213.03/x
  3. Step 3: Cross multiply
    13,108.91x = 19,663.97 × 5,213.03
  4. Step 4: Simplify right side
    13,108.91x = 102,508,741.14
  5. Step 5: Solve for x
    x = 102,508,741.14/13,108.91
  6. Step 6: Final answer
    x = 7,819.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.