Home / 11,915.20-16,444.95-6,611.73

Finding the Fourth Proportional to 11,915.20, 16,444.95 and 6,611.73

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Solution

The fourth proportional to 11,915.20, 16,444.95 and 6,611.73 is: 9,125.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,915.20 : 16,444.95 = 6,611.73 : x
  2. Step 2: Convert to fraction form
    11,915.20/16,444.95 = 6,611.73/x
  3. Step 3: Cross multiply
    11,915.20x = 16,444.95 × 6,611.73
  4. Step 4: Simplify right side
    11,915.20x = 108,729,482.80
  5. Step 5: Solve for x
    x = 108,729,482.80/11,915.20
  6. Step 6: Final answer
    x = 9,125.27

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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.