Home / 10,217.14-15,311.32-8,127.88

Finding the Fourth Proportional to 10,217.14, 15,311.32 and 8,127.88

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Solution

The fourth proportional to 10,217.14, 15,311.32 and 8,127.88 is: 12,180.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,217.14 : 15,311.32 = 8,127.88 : x
  2. Step 2: Convert to fraction form
    10,217.14/15,311.32 = 8,127.88/x
  3. Step 3: Cross multiply
    10,217.14x = 15,311.32 × 8,127.88
  4. Step 4: Simplify right side
    10,217.14x = 124,448,571.60
  5. Step 5: Solve for x
    x = 124,448,571.60/10,217.14
  6. Step 6: Final answer
    x = 12,180.37

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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.