Home / 13,450.39-20,167.90-4,087.64

Finding the Fourth Proportional to 13,450.39, 20,167.90 and 4,087.64

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Solution

The fourth proportional to 13,450.39, 20,167.90 and 4,087.64 is: 6,129.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,450.39 : 20,167.90 = 4,087.64 : x
  2. Step 2: Convert to fraction form
    13,450.39/20,167.90 = 4,087.64/x
  3. Step 3: Cross multiply
    13,450.39x = 20,167.90 × 4,087.64
  4. Step 4: Simplify right side
    13,450.39x = 82,439,103.98
  5. Step 5: Solve for x
    x = 82,439,103.98/13,450.39
  6. Step 6: Final answer
    x = 6,129.12

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1.5x scale

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.