Home / 13,213.62-19,773.20-11,479.06

Finding the Fourth Proportional to 13,213.62, 19,773.20 and 11,479.06

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Solution

The fourth proportional to 13,213.62, 19,773.20 and 11,479.06 is: 17,177.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,213.62 : 19,773.20 = 11,479.06 : x
  2. Step 2: Convert to fraction form
    13,213.62/19,773.20 = 11,479.06/x
  3. Step 3: Cross multiply
    13,213.62x = 19,773.20 × 11,479.06
  4. Step 4: Simplify right side
    13,213.62x = 226,977,749.19
  5. Step 5: Solve for x
    x = 226,977,749.19/13,213.62
  6. Step 6: Final answer
    x = 17,177.56

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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.