Home / 18,078.64-27,115.16-4,932.08

Finding the Fourth Proportional to 18,078.64, 27,115.16 and 4,932.08

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Solution

The fourth proportional to 18,078.64, 27,115.16 and 4,932.08 is: 7,397.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,078.64 : 27,115.16 = 4,932.08 : x
  2. Step 2: Convert to fraction form
    18,078.64/27,115.16 = 4,932.08/x
  3. Step 3: Cross multiply
    18,078.64x = 27,115.16 × 4,932.08
  4. Step 4: Simplify right side
    18,078.64x = 133,734,138.33
  5. Step 5: Solve for x
    x = 133,734,138.33/18,078.64
  6. Step 6: Final answer
    x = 7,397.36

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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.