Home / 13,574.85-20,361.31-4,214.64

Finding the Fourth Proportional to 13,574.85, 20,361.31 and 4,214.64

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Solution

The fourth proportional to 13,574.85, 20,361.31 and 4,214.64 is: 6,321.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,574.85 : 20,361.31 = 4,214.64 : x
  2. Step 2: Convert to fraction form
    13,574.85/20,361.31 = 4,214.64/x
  3. Step 3: Cross multiply
    13,574.85x = 20,361.31 × 4,214.64
  4. Step 4: Simplify right side
    13,574.85x = 85,815,591.58
  5. Step 5: Solve for x
    x = 85,815,591.58/13,574.85
  6. Step 6: Final answer
    x = 6,321.66

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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.