Home / 18,560.81-25,579.58-13,183.49

Finding the Fourth Proportional to 18,560.81, 25,579.58 and 13,183.49

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Solution

The fourth proportional to 18,560.81, 25,579.58 and 13,183.49 is: 18,168.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,560.81 : 25,579.58 = 13,183.49 : x
  2. Step 2: Convert to fraction form
    18,560.81/25,579.58 = 13,183.49/x
  3. Step 3: Cross multiply
    18,560.81x = 25,579.58 × 13,183.49
  4. Step 4: Simplify right side
    18,560.81x = 337,228,137.13
  5. Step 5: Solve for x
    x = 337,228,137.13/18,560.81
  6. Step 6: Final answer
    x = 18,168.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.