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Finding the Fourth Proportional to 8,464.77, 12,695.94 and 4,081.05

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Solution

The fourth proportional to 8,464.77, 12,695.94 and 4,081.05 is: 6,120.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,464.77 : 12,695.94 = 4,081.05 : x
  2. Step 2: Convert to fraction form
    8,464.77/12,695.94 = 4,081.05/x
  3. Step 3: Cross multiply
    8,464.77x = 12,695.94 × 4,081.05
  4. Step 4: Simplify right side
    8,464.77x = 51,812,765.94
  5. Step 5: Solve for x
    x = 51,812,765.94/8,464.77
  6. Step 6: Final answer
    x = 6,120.99

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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.