Home / 13,932.62-19,231.42-9,401.89

Finding the Fourth Proportional to 13,932.62, 19,231.42 and 9,401.89

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Solution

The fourth proportional to 13,932.62, 19,231.42 and 9,401.89 is: 12,977.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.62 : 19,231.42 = 9,401.89 : x
  2. Step 2: Convert to fraction form
    13,932.62/19,231.42 = 9,401.89/x
  3. Step 3: Cross multiply
    13,932.62x = 19,231.42 × 9,401.89
  4. Step 4: Simplify right side
    13,932.62x = 180,811,677.49
  5. Step 5: Solve for x
    x = 180,811,677.49/13,932.62
  6. Step 6: Final answer
    x = 12,977.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.