Home / 18,016.97-27,021.60-6,919.76

Finding the Fourth Proportional to 18,016.97, 27,021.60 and 6,919.76

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Solution

The fourth proportional to 18,016.97, 27,021.60 and 6,919.76 is: 10,378.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,016.97 : 27,021.60 = 6,919.76 : x
  2. Step 2: Convert to fraction form
    18,016.97/27,021.60 = 6,919.76/x
  3. Step 3: Cross multiply
    18,016.97x = 27,021.60 × 6,919.76
  4. Step 4: Simplify right side
    18,016.97x = 186,983,054.37
  5. Step 5: Solve for x
    x = 186,983,054.37/18,016.97
  6. Step 6: Final answer
    x = 10,378.17

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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.