Home / 11,438.20-17,167.14-6,517.72

Finding the Fourth Proportional to 11,438.20, 17,167.14 and 6,517.72

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Solution

The fourth proportional to 11,438.20, 17,167.14 and 6,517.72 is: 9,782.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,438.20 : 17,167.14 = 6,517.72 : x
  2. Step 2: Convert to fraction form
    11,438.20/17,167.14 = 6,517.72/x
  3. Step 3: Cross multiply
    11,438.20x = 17,167.14 × 6,517.72
  4. Step 4: Simplify right side
    11,438.20x = 111,890,611.72
  5. Step 5: Solve for x
    x = 111,890,611.72/11,438.20
  6. Step 6: Final answer
    x = 9,782.19

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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.