Home / 18,319.10-27,480.39-4,992.26

Finding the Fourth Proportional to 18,319.10, 27,480.39 and 4,992.26

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Solution

The fourth proportional to 18,319.10, 27,480.39 and 4,992.26 is: 7,488.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,319.10 : 27,480.39 = 4,992.26 : x
  2. Step 2: Convert to fraction form
    18,319.10/27,480.39 = 4,992.26/x
  3. Step 3: Cross multiply
    18,319.10x = 27,480.39 × 4,992.26
  4. Step 4: Simplify right side
    18,319.10x = 137,189,251.78
  5. Step 5: Solve for x
    x = 137,189,251.78/18,319.10
  6. Step 6: Final answer
    x = 7,488.86

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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.