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Finding the Fourth Proportional to 12,926, 19,389 and 3,692

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Solution

The fourth proportional to 12,926, 19,389 and 3,692 is: 5,538

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,926 : 19,389 = 3,692 : x
  2. Step 2: Convert to fraction form
    12,926/19,389 = 3,692/x
  3. Step 3: Cross multiply
    12,926x = 19,389 × 3,692
  4. Step 4: Simplify right side
    12,926x = 71,584,188
  5. Step 5: Solve for x
    x = 71,584,188/12,926
  6. Step 6: Final answer
    x = 5,538

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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.