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Finding the Fourth Proportional to 8,633.91, 12,950.87 and 5,711.53

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Solution

The fourth proportional to 8,633.91, 12,950.87 and 5,711.53 is: 8,567.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,633.91 : 12,950.87 = 5,711.53 : x
  2. Step 2: Convert to fraction form
    8,633.91/12,950.87 = 5,711.53/x
  3. Step 3: Cross multiply
    8,633.91x = 12,950.87 × 5,711.53
  4. Step 4: Simplify right side
    8,633.91x = 73,969,286.35
  5. Step 5: Solve for x
    x = 73,969,286.35/8,633.91
  6. Step 6: Final answer
    x = 8,567.30

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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.