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Finding the Fourth Proportional to 12,633.69, 18,950.58 and 12,329.22

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Solution

The fourth proportional to 12,633.69, 18,950.58 and 12,329.22 is: 18,493.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,633.69 : 18,950.58 = 12,329.22 : x
  2. Step 2: Convert to fraction form
    12,633.69/18,950.58 = 12,329.22/x
  3. Step 3: Cross multiply
    12,633.69x = 18,950.58 × 12,329.22
  4. Step 4: Simplify right side
    12,633.69x = 233,645,869.95
  5. Step 5: Solve for x
    x = 233,645,869.95/12,633.69
  6. Step 6: Final answer
    x = 18,493.87

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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.