Home / 8,455.24-12,684.66-3,261.16

Finding the Fourth Proportional to 8,455.24, 12,684.66 and 3,261.16

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Solution

The fourth proportional to 8,455.24, 12,684.66 and 3,261.16 is: 4,892.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,455.24 : 12,684.66 = 3,261.16 : x
  2. Step 2: Convert to fraction form
    8,455.24/12,684.66 = 3,261.16/x
  3. Step 3: Cross multiply
    8,455.24x = 12,684.66 × 3,261.16
  4. Step 4: Simplify right side
    8,455.24x = 41,366,705.81
  5. Step 5: Solve for x
    x = 41,366,705.81/8,455.24
  6. Step 6: Final answer
    x = 4,892.43

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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.