Home / 7,941.24-11,912.13-3,784.32

Finding the Fourth Proportional to 7,941.24, 11,912.13 and 3,784.32

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Solution

The fourth proportional to 7,941.24, 11,912.13 and 3,784.32 is: 5,676.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,941.24 : 11,912.13 = 3,784.32 : x
  2. Step 2: Convert to fraction form
    7,941.24/11,912.13 = 3,784.32/x
  3. Step 3: Cross multiply
    7,941.24x = 11,912.13 × 3,784.32
  4. Step 4: Simplify right side
    7,941.24x = 45,079,311.80
  5. Step 5: Solve for x
    x = 45,079,311.80/7,941.24
  6. Step 6: Final answer
    x = 5,676.61

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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.