Home / 18,015.37-27,004.58-6,919.07

Finding the Fourth Proportional to 18,015.37, 27,004.58 and 6,919.07

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Solution

The fourth proportional to 18,015.37, 27,004.58 and 6,919.07 is: 10,371.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,015.37 : 27,004.58 = 6,919.07 : x
  2. Step 2: Convert to fraction form
    18,015.37/27,004.58 = 6,919.07/x
  3. Step 3: Cross multiply
    18,015.37x = 27,004.58 × 6,919.07
  4. Step 4: Simplify right side
    18,015.37x = 186,846,579.34
  5. Step 5: Solve for x
    x = 186,846,579.34/18,015.37
  6. Step 6: Final answer
    x = 10,371.51

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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.