Home / 7,928.28-10,936.62-6,243.48

Finding the Fourth Proportional to 7,928.28, 10,936.62 and 6,243.48

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Solution

The fourth proportional to 7,928.28, 10,936.62 and 6,243.48 is: 8,612.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,928.28 : 10,936.62 = 6,243.48 : x
  2. Step 2: Convert to fraction form
    7,928.28/10,936.62 = 6,243.48/x
  3. Step 3: Cross multiply
    7,928.28x = 10,936.62 × 6,243.48
  4. Step 4: Simplify right side
    7,928.28x = 68,282,568.24
  5. Step 5: Solve for x
    x = 68,282,568.24/7,928.28
  6. Step 6: Final answer
    x = 8,612.53

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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.