Home / 8,958.11-13,439.86-3,618.54

Finding the Fourth Proportional to 8,958.11, 13,439.86 and 3,618.54

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Solution

The fourth proportional to 8,958.11, 13,439.86 and 3,618.54 is: 5,428.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958.11 : 13,439.86 = 3,618.54 : x
  2. Step 2: Convert to fraction form
    8,958.11/13,439.86 = 3,618.54/x
  3. Step 3: Cross multiply
    8,958.11x = 13,439.86 × 3,618.54
  4. Step 4: Simplify right side
    8,958.11x = 48,632,661.96
  5. Step 5: Solve for x
    x = 48,632,661.96/8,958.11
  6. Step 6: Final answer
    x = 5,428.90

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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.