Home / 7,936.28-10,939.94-6,254.68

Finding the Fourth Proportional to 7,936.28, 10,939.94 and 6,254.68

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Solution

The fourth proportional to 7,936.28, 10,939.94 and 6,254.68 is: 8,621.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,936.28 : 10,939.94 = 6,254.68 : x
  2. Step 2: Convert to fraction form
    7,936.28/10,939.94 = 6,254.68/x
  3. Step 3: Cross multiply
    7,936.28x = 10,939.94 × 6,254.68
  4. Step 4: Simplify right side
    7,936.28x = 68,425,823.92
  5. Step 5: Solve for x
    x = 68,425,823.92/7,936.28
  6. Step 6: Final answer
    x = 8,621.90

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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.