Home / 10,951.53-15,113.11-5,915.75

Finding the Fourth Proportional to 10,951.53, 15,113.11 and 5,915.75

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Solution

The fourth proportional to 10,951.53, 15,113.11 and 5,915.75 is: 8,163.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,951.53 : 15,113.11 = 5,915.75 : x
  2. Step 2: Convert to fraction form
    10,951.53/15,113.11 = 5,915.75/x
  3. Step 3: Cross multiply
    10,951.53x = 15,113.11 × 5,915.75
  4. Step 4: Simplify right side
    10,951.53x = 89,405,380.48
  5. Step 5: Solve for x
    x = 89,405,380.48/10,951.53
  6. Step 6: Final answer
    x = 8,163.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.