Home / 7,942.88-11,921.68-4,050.20

Finding the Fourth Proportional to 7,942.88, 11,921.68 and 4,050.20

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Solution

The fourth proportional to 7,942.88, 11,921.68 and 4,050.20 is: 6,079.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,942.88 : 11,921.68 = 4,050.20 : x
  2. Step 2: Convert to fraction form
    7,942.88/11,921.68 = 4,050.20/x
  3. Step 3: Cross multiply
    7,942.88x = 11,921.68 × 4,050.20
  4. Step 4: Simplify right side
    7,942.88x = 48,285,188.34
  5. Step 5: Solve for x
    x = 48,285,188.34/7,942.88
  6. Step 6: Final answer
    x = 6,079.05

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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.