Home / 8,643.20-12,964.86-3,708.68

Finding the Fourth Proportional to 8,643.20, 12,964.86 and 3,708.68

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Solution

The fourth proportional to 8,643.20, 12,964.86 and 3,708.68 is: 5,563.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,643.20 : 12,964.86 = 3,708.68 : x
  2. Step 2: Convert to fraction form
    8,643.20/12,964.86 = 3,708.68/x
  3. Step 3: Cross multiply
    8,643.20x = 12,964.86 × 3,708.68
  4. Step 4: Simplify right side
    8,643.20x = 48,082,516.98
  5. Step 5: Solve for x
    x = 48,082,516.98/8,643.20
  6. Step 6: Final answer
    x = 5,563.05

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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.