Home / 13,189.82-19,778.34-4,873.75

Finding the Fourth Proportional to 13,189.82, 19,778.34 and 4,873.75

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Solution

The fourth proportional to 13,189.82, 19,778.34 and 4,873.75 is: 7,308.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,189.82 : 19,778.34 = 4,873.75 : x
  2. Step 2: Convert to fraction form
    13,189.82/19,778.34 = 4,873.75/x
  3. Step 3: Cross multiply
    13,189.82x = 19,778.34 × 4,873.75
  4. Step 4: Simplify right side
    13,189.82x = 96,394,635.13
  5. Step 5: Solve for x
    x = 96,394,635.13/13,189.82
  6. Step 6: Final answer
    x = 7,308.26

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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.