Home / 10,687.92-16,029.58-4,112.88

Finding the Fourth Proportional to 10,687.92, 16,029.58 and 4,112.88

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Solution

The fourth proportional to 10,687.92, 16,029.58 and 4,112.88 is: 6,168.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,687.92 : 16,029.58 = 4,112.88 : x
  2. Step 2: Convert to fraction form
    10,687.92/16,029.58 = 4,112.88/x
  3. Step 3: Cross multiply
    10,687.92x = 16,029.58 × 4,112.88
  4. Step 4: Simplify right side
    10,687.92x = 65,927,738.99
  5. Step 5: Solve for x
    x = 65,927,738.99/10,687.92
  6. Step 6: Final answer
    x = 6,168.43

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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.