Home / 8,633.82-12,950.20-3,086.90

Finding the Fourth Proportional to 8,633.82, 12,950.20 and 3,086.90

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Solution

The fourth proportional to 8,633.82, 12,950.20 and 3,086.90 is: 4,630.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,633.82 : 12,950.20 = 3,086.90 : x
  2. Step 2: Convert to fraction form
    8,633.82/12,950.20 = 3,086.90/x
  3. Step 3: Cross multiply
    8,633.82x = 12,950.20 × 3,086.90
  4. Step 4: Simplify right side
    8,633.82x = 39,975,972.38
  5. Step 5: Solve for x
    x = 39,975,972.38/8,633.82
  6. Step 6: Final answer
    x = 4,630.16

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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.