Home / 10,912.35-15,060.99-6,435.84

Finding the Fourth Proportional to 10,912.35, 15,060.99 and 6,435.84

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Solution

The fourth proportional to 10,912.35, 15,060.99 and 6,435.84 is: 8,882.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,912.35 : 15,060.99 = 6,435.84 : x
  2. Step 2: Convert to fraction form
    10,912.35/15,060.99 = 6,435.84/x
  3. Step 3: Cross multiply
    10,912.35x = 15,060.99 × 6,435.84
  4. Step 4: Simplify right side
    10,912.35x = 96,930,121.88
  5. Step 5: Solve for x
    x = 96,930,121.88/10,912.35
  6. Step 6: Final answer
    x = 8,882.61

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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.