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Finding the Fourth Proportional to 12,158, 18,237 and 3,950

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Solution

The fourth proportional to 12,158, 18,237 and 3,950 is: 5,925

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,158 : 18,237 = 3,950 : x
  2. Step 2: Convert to fraction form
    12,158/18,237 = 3,950/x
  3. Step 3: Cross multiply
    12,158x = 18,237 × 3,950
  4. Step 4: Simplify right side
    12,158x = 72,036,150
  5. Step 5: Solve for x
    x = 72,036,150/12,158
  6. Step 6: Final answer
    x = 5,925

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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.