Home / 13,179.60-19,749.48-5,779.92

Finding the Fourth Proportional to 13,179.60, 19,749.48 and 5,779.92

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Solution

The fourth proportional to 13,179.60, 19,749.48 and 5,779.92 is: 8,661.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,179.60 : 19,749.48 = 5,779.92 : x
  2. Step 2: Convert to fraction form
    13,179.60/19,749.48 = 5,779.92/x
  3. Step 3: Cross multiply
    13,179.60x = 19,749.48 × 5,779.92
  4. Step 4: Simplify right side
    13,179.60x = 114,150,414.44
  5. Step 5: Solve for x
    x = 114,150,414.44/13,179.60
  6. Step 6: Final answer
    x = 8,661.14

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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.