Home / 7,976.32-11,007.68-4,619.32

Finding the Fourth Proportional to 7,976.32, 11,007.68 and 4,619.32

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Solution

The fourth proportional to 7,976.32, 11,007.68 and 4,619.32 is: 6,374.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,976.32 : 11,007.68 = 4,619.32 : x
  2. Step 2: Convert to fraction form
    7,976.32/11,007.68 = 4,619.32/x
  3. Step 3: Cross multiply
    7,976.32x = 11,007.68 × 4,619.32
  4. Step 4: Simplify right side
    7,976.32x = 50,847,996.38
  5. Step 5: Solve for x
    x = 50,847,996.38/7,976.32
  6. Step 6: Final answer
    x = 6,374.87

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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.