Home / 12,183.44-18,263.64-4,390.16

Finding the Fourth Proportional to 12,183.44, 18,263.64 and 4,390.16

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Solution

The fourth proportional to 12,183.44, 18,263.64 and 4,390.16 is: 6,581.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.44 : 18,263.64 = 4,390.16 : x
  2. Step 2: Convert to fraction form
    12,183.44/18,263.64 = 4,390.16/x
  3. Step 3: Cross multiply
    12,183.44x = 18,263.64 × 4,390.16
  4. Step 4: Simplify right side
    12,183.44x = 80,180,301.78
  5. Step 5: Solve for x
    x = 80,180,301.78/12,183.44
  6. Step 6: Final answer
    x = 6,581.09

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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.