Home / 7,939.28-10,953.98-6,255.46

Finding the Fourth Proportional to 7,939.28, 10,953.98 and 6,255.46

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Solution

The fourth proportional to 7,939.28, 10,953.98 and 6,255.46 is: 8,630.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939.28 : 10,953.98 = 6,255.46 : x
  2. Step 2: Convert to fraction form
    7,939.28/10,953.98 = 6,255.46/x
  3. Step 3: Cross multiply
    7,939.28x = 10,953.98 × 6,255.46
  4. Step 4: Simplify right side
    7,939.28x = 68,522,183.73
  5. Step 5: Solve for x
    x = 68,522,183.73/7,939.28
  6. Step 6: Final answer
    x = 8,630.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.