Home / 10,195.94-15,299.62-5,515.86

Finding the Fourth Proportional to 10,195.94, 15,299.62 and 5,515.86

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Solution

The fourth proportional to 10,195.94, 15,299.62 and 5,515.86 is: 8,276.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,195.94 : 15,299.62 = 5,515.86 : x
  2. Step 2: Convert to fraction form
    10,195.94/15,299.62 = 5,515.86/x
  3. Step 3: Cross multiply
    10,195.94x = 15,299.62 × 5,515.86
  4. Step 4: Simplify right side
    10,195.94x = 84,390,561.97
  5. Step 5: Solve for x
    x = 84,390,561.97/10,195.94
  6. Step 6: Final answer
    x = 8,276.88

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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.