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Finding the Fourth Proportional to 8,303.80, 12,449.50 and 3,622.92

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Solution

The fourth proportional to 8,303.80, 12,449.50 and 3,622.92 is: 5,431.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,303.80 : 12,449.50 = 3,622.92 : x
  2. Step 2: Convert to fraction form
    8,303.80/12,449.50 = 3,622.92/x
  3. Step 3: Cross multiply
    8,303.80x = 12,449.50 × 3,622.92
  4. Step 4: Simplify right side
    8,303.80x = 45,103,542.54
  5. Step 5: Solve for x
    x = 45,103,542.54/8,303.80
  6. Step 6: Final answer
    x = 5,431.67

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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.