Home / 11,977.10-17,965.75-4,185.93

Finding the Fourth Proportional to 11,977.10, 17,965.75 and 4,185.93

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Solution

The fourth proportional to 11,977.10, 17,965.75 and 4,185.93 is: 6,278.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,977.10 : 17,965.75 = 4,185.93 : x
  2. Step 2: Convert to fraction form
    11,977.10/17,965.75 = 4,185.93/x
  3. Step 3: Cross multiply
    11,977.10x = 17,965.75 × 4,185.93
  4. Step 4: Simplify right side
    11,977.10x = 75,203,371.90
  5. Step 5: Solve for x
    x = 75,203,371.90/11,977.10
  6. Step 6: Final answer
    x = 6,278.93

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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.