Home / 12,183.13-18,276.09-6,644.58

Finding the Fourth Proportional to 12,183.13, 18,276.09 and 6,644.58

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Solution

The fourth proportional to 12,183.13, 18,276.09 and 6,644.58 is: 9,967.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.13 : 18,276.09 = 6,644.58 : x
  2. Step 2: Convert to fraction form
    12,183.13/18,276.09 = 6,644.58/x
  3. Step 3: Cross multiply
    12,183.13x = 18,276.09 × 6,644.58
  4. Step 4: Simplify right side
    12,183.13x = 121,436,942.09
  5. Step 5: Solve for x
    x = 121,436,942.09/12,183.13
  6. Step 6: Final answer
    x = 9,967.63

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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.