Home / 8,206.20-12,313.42-3,763.86

Finding the Fourth Proportional to 8,206.20, 12,313.42 and 3,763.86

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Solution

The fourth proportional to 8,206.20, 12,313.42 and 3,763.86 is: 5,647.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,206.20 : 12,313.42 = 3,763.86 : x
  2. Step 2: Convert to fraction form
    8,206.20/12,313.42 = 3,763.86/x
  3. Step 3: Cross multiply
    8,206.20x = 12,313.42 × 3,763.86
  4. Step 4: Simplify right side
    8,206.20x = 46,345,933.42
  5. Step 5: Solve for x
    x = 46,345,933.42/8,206.20
  6. Step 6: Final answer
    x = 5,647.67

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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.