Home / 10,786.87-16,180.21-4,217.64

Finding the Fourth Proportional to 10,786.87, 16,180.21 and 4,217.64

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Solution

The fourth proportional to 10,786.87, 16,180.21 and 4,217.64 is: 6,326.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,786.87 : 16,180.21 = 4,217.64 : x
  2. Step 2: Convert to fraction form
    10,786.87/16,180.21 = 4,217.64/x
  3. Step 3: Cross multiply
    10,786.87x = 16,180.21 × 4,217.64
  4. Step 4: Simplify right side
    10,786.87x = 68,242,300.90
  5. Step 5: Solve for x
    x = 68,242,300.90/10,786.87
  6. Step 6: Final answer
    x = 6,326.42

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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.