Home / 13,854.21-20,781.33-3,465.96

Finding the Fourth Proportional to 13,854.21, 20,781.33 and 3,465.96

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Solution

The fourth proportional to 13,854.21, 20,781.33 and 3,465.96 is: 5,198.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,854.21 : 20,781.33 = 3,465.96 : x
  2. Step 2: Convert to fraction form
    13,854.21/20,781.33 = 3,465.96/x
  3. Step 3: Cross multiply
    13,854.21x = 20,781.33 × 3,465.96
  4. Step 4: Simplify right side
    13,854.21x = 72,027,258.53
  5. Step 5: Solve for x
    x = 72,027,258.53/13,854.21
  6. Step 6: Final answer
    x = 5,198.94

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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.