Home / 13,183.55-19,763.85-5,387.39

Finding the Fourth Proportional to 13,183.55, 19,763.85 and 5,387.39

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Solution

The fourth proportional to 13,183.55, 19,763.85 and 5,387.39 is: 8,076.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.55 : 19,763.85 = 5,387.39 : x
  2. Step 2: Convert to fraction form
    13,183.55/19,763.85 = 5,387.39/x
  3. Step 3: Cross multiply
    13,183.55x = 19,763.85 × 5,387.39
  4. Step 4: Simplify right side
    13,183.55x = 106,475,540.91
  5. Step 5: Solve for x
    x = 106,475,540.91/13,183.55
  6. Step 6: Final answer
    x = 8,076.39

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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.