Home / 12,183.81-18,276.66-3,863.58

Finding the Fourth Proportional to 12,183.81, 18,276.66 and 3,863.58

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Solution

The fourth proportional to 12,183.81, 18,276.66 and 3,863.58 is: 5,795.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.81 : 18,276.66 = 3,863.58 : x
  2. Step 2: Convert to fraction form
    12,183.81/18,276.66 = 3,863.58/x
  3. Step 3: Cross multiply
    12,183.81x = 18,276.66 × 3,863.58
  4. Step 4: Simplify right side
    12,183.81x = 70,613,338.04
  5. Step 5: Solve for x
    x = 70,613,338.04/12,183.81
  6. Step 6: Final answer
    x = 5,795.67

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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.