Home / 11,611.72-17,378.70-9,531.64

Finding the Fourth Proportional to 11,611.72, 17,378.70 and 9,531.64

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Solution

The fourth proportional to 11,611.72, 17,378.70 and 9,531.64 is: 14,265.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,611.72 : 17,378.70 = 9,531.64 : x
  2. Step 2: Convert to fraction form
    11,611.72/17,378.70 = 9,531.64/x
  3. Step 3: Cross multiply
    11,611.72x = 17,378.70 × 9,531.64
  4. Step 4: Simplify right side
    11,611.72x = 165,647,512.07
  5. Step 5: Solve for x
    x = 165,647,512.07/11,611.72
  6. Step 6: Final answer
    x = 14,265.54

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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.