Home / 13,659.64-20,497.43-5,761.67

Finding the Fourth Proportional to 13,659.64, 20,497.43 and 5,761.67

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Solution

The fourth proportional to 13,659.64, 20,497.43 and 5,761.67 is: 8,645.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,659.64 : 20,497.43 = 5,761.67 : x
  2. Step 2: Convert to fraction form
    13,659.64/20,497.43 = 5,761.67/x
  3. Step 3: Cross multiply
    13,659.64x = 20,497.43 × 5,761.67
  4. Step 4: Simplify right side
    13,659.64x = 118,099,398.70
  5. Step 5: Solve for x
    x = 118,099,398.70/13,659.64
  6. Step 6: Final answer
    x = 8,645.87

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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.