Home / 18,226.20-27,338.49-5,078.28

Finding the Fourth Proportional to 18,226.20, 27,338.49 and 5,078.28

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Solution

The fourth proportional to 18,226.20, 27,338.49 and 5,078.28 is: 7,617.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,226.20 : 27,338.49 = 5,078.28 : x
  2. Step 2: Convert to fraction form
    18,226.20/27,338.49 = 5,078.28/x
  3. Step 3: Cross multiply
    18,226.20x = 27,338.49 × 5,078.28
  4. Step 4: Simplify right side
    18,226.20x = 138,832,507.00
  5. Step 5: Solve for x
    x = 138,832,507.00/18,226.20
  6. Step 6: Final answer
    x = 7,617.19

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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.