Home / 13,119.22-19,679.31-5,327.86

Finding the Fourth Proportional to 13,119.22, 19,679.31 and 5,327.86

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Solution

The fourth proportional to 13,119.22, 19,679.31 and 5,327.86 is: 7,991.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,119.22 : 19,679.31 = 5,327.86 : x
  2. Step 2: Convert to fraction form
    13,119.22/19,679.31 = 5,327.86/x
  3. Step 3: Cross multiply
    13,119.22x = 19,679.31 × 5,327.86
  4. Step 4: Simplify right side
    13,119.22x = 104,848,608.58
  5. Step 5: Solve for x
    x = 104,848,608.58/13,119.22
  6. Step 6: Final answer
    x = 7,991.98

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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.