Home / 13,183.37-18,193.50-7,518.97

Finding the Fourth Proportional to 13,183.37, 18,193.50 and 7,518.97

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Solution

The fourth proportional to 13,183.37, 18,193.50 and 7,518.97 is: 10,376.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,183.37 : 18,193.50 = 7,518.97 : x
  2. Step 2: Convert to fraction form
    13,183.37/18,193.50 = 7,518.97/x
  3. Step 3: Cross multiply
    13,183.37x = 18,193.50 × 7,518.97
  4. Step 4: Simplify right side
    13,183.37x = 136,796,380.70
  5. Step 5: Solve for x
    x = 136,796,380.70/13,183.37
  6. Step 6: Final answer
    x = 10,376.44

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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.