Home / 7,115.96-10,685.46-6,816.44

Finding the Fourth Proportional to 7,115.96, 10,685.46 and 6,816.44

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Solution

The fourth proportional to 7,115.96, 10,685.46 and 6,816.44 is: 10,235.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,115.96 : 10,685.46 = 6,816.44 : x
  2. Step 2: Convert to fraction form
    7,115.96/10,685.46 = 6,816.44/x
  3. Step 3: Cross multiply
    7,115.96x = 10,685.46 × 6,816.44
  4. Step 4: Simplify right side
    7,115.96x = 72,836,796.96
  5. Step 5: Solve for x
    x = 72,836,796.96/7,115.96
  6. Step 6: Final answer
    x = 10,235.70

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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.