Home / 13,659.87-20,494.89-5,764.44

Finding the Fourth Proportional to 13,659.87, 20,494.89 and 5,764.44

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Solution

The fourth proportional to 13,659.87, 20,494.89 and 5,764.44 is: 8,648.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.87 : 20,494.89 = 5,764.44 : x
  2. Step 2: Convert to fraction form
    13,659.87/20,494.89 = 5,764.44/x
  3. Step 3: Cross multiply
    13,659.87x = 20,494.89 × 5,764.44
  4. Step 4: Simplify right side
    13,659.87x = 118,141,563.71
  5. Step 5: Solve for x
    x = 118,141,563.71/13,659.87
  6. Step 6: Final answer
    x = 8,648.81

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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.