Home / 7,995.14-11,996.58-3,318.74

Finding the Fourth Proportional to 7,995.14, 11,996.58 and 3,318.74

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Solution

The fourth proportional to 7,995.14, 11,996.58 and 3,318.74 is: 4,979.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,995.14 : 11,996.58 = 3,318.74 : x
  2. Step 2: Convert to fraction form
    7,995.14/11,996.58 = 3,318.74/x
  3. Step 3: Cross multiply
    7,995.14x = 11,996.58 × 3,318.74
  4. Step 4: Simplify right side
    7,995.14x = 39,813,529.91
  5. Step 5: Solve for x
    x = 39,813,529.91/7,995.14
  6. Step 6: Final answer
    x = 4,979.72

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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.