Home / 18,226.37-27,339.17-5,078.40

Finding the Fourth Proportional to 18,226.37, 27,339.17 and 5,078.40

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Solution

The fourth proportional to 18,226.37, 27,339.17 and 5,078.40 is: 7,617.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,226.37 : 27,339.17 = 5,078.40 : x
  2. Step 2: Convert to fraction form
    18,226.37/27,339.17 = 5,078.40/x
  3. Step 3: Cross multiply
    18,226.37x = 27,339.17 × 5,078.40
  4. Step 4: Simplify right side
    18,226.37x = 138,839,141.58
  5. Step 5: Solve for x
    x = 138,839,141.58/18,226.37
  6. Step 6: Final answer
    x = 7,617.49

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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.