Home / 12,699.11-19,047.96-3,933.77

Finding the Fourth Proportional to 12,699.11, 19,047.96 and 3,933.77

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Solution

The fourth proportional to 12,699.11, 19,047.96 and 3,933.77 is: 5,900.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.11 : 19,047.96 = 3,933.77 : x
  2. Step 2: Convert to fraction form
    12,699.11/19,047.96 = 3,933.77/x
  3. Step 3: Cross multiply
    12,699.11x = 19,047.96 × 3,933.77
  4. Step 4: Simplify right side
    12,699.11x = 74,930,198.37
  5. Step 5: Solve for x
    x = 74,930,198.37/12,699.11
  6. Step 6: Final answer
    x = 5,900.43

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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.