Home / 18,665.32-27,982.86-6,976.84

Finding the Fourth Proportional to 18,665.32, 27,982.86 and 6,976.84

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Solution

The fourth proportional to 18,665.32, 27,982.86 and 6,976.84 is: 10,459.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.32 : 27,982.86 = 6,976.84 : x
  2. Step 2: Convert to fraction form
    18,665.32/27,982.86 = 6,976.84/x
  3. Step 3: Cross multiply
    18,665.32x = 27,982.86 × 6,976.84
  4. Step 4: Simplify right side
    18,665.32x = 195,231,936.96
  5. Step 5: Solve for x
    x = 195,231,936.96/18,665.32
  6. Step 6: Final answer
    x = 10,459.61

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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.