Home / 13,109.26-19,663.68-4,789.24

Finding the Fourth Proportional to 13,109.26, 19,663.68 and 4,789.24

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Solution

The fourth proportional to 13,109.26, 19,663.68 and 4,789.24 is: 7,183.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,109.26 : 19,663.68 = 4,789.24 : x
  2. Step 2: Convert to fraction form
    13,109.26/19,663.68 = 4,789.24/x
  3. Step 3: Cross multiply
    13,109.26x = 19,663.68 × 4,789.24
  4. Step 4: Simplify right side
    13,109.26x = 94,174,082.80
  5. Step 5: Solve for x
    x = 94,174,082.80/13,109.26
  6. Step 6: Final answer
    x = 7,183.78

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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.