Home / 8,684.28-13,022.97-3,134.61

Finding the Fourth Proportional to 8,684.28, 13,022.97 and 3,134.61

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Solution

The fourth proportional to 8,684.28, 13,022.97 and 3,134.61 is: 4,700.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,684.28 : 13,022.97 = 3,134.61 : x
  2. Step 2: Convert to fraction form
    8,684.28/13,022.97 = 3,134.61/x
  3. Step 3: Cross multiply
    8,684.28x = 13,022.97 × 3,134.61
  4. Step 4: Simplify right side
    8,684.28x = 40,821,931.99
  5. Step 5: Solve for x
    x = 40,821,931.99/8,684.28
  6. Step 6: Final answer
    x = 4,700.67

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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.