Home / 8,261.14-12,394.24-2,638.66

Finding the Fourth Proportional to 8,261.14, 12,394.24 and 2,638.66

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Solution

The fourth proportional to 8,261.14, 12,394.24 and 2,638.66 is: 3,958.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.14 : 12,394.24 = 2,638.66 : x
  2. Step 2: Convert to fraction form
    8,261.14/12,394.24 = 2,638.66/x
  3. Step 3: Cross multiply
    8,261.14x = 12,394.24 × 2,638.66
  4. Step 4: Simplify right side
    8,261.14x = 32,704,185.32
  5. Step 5: Solve for x
    x = 32,704,185.32/8,261.14
  6. Step 6: Final answer
    x = 3,958.80

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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.