Home / 11,378.29-17,075.12-3,982.81

Finding the Fourth Proportional to 11,378.29, 17,075.12 and 3,982.81

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Solution

The fourth proportional to 11,378.29, 17,075.12 and 3,982.81 is: 5,976.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,378.29 : 17,075.12 = 3,982.81 : x
  2. Step 2: Convert to fraction form
    11,378.29/17,075.12 = 3,982.81/x
  3. Step 3: Cross multiply
    11,378.29x = 17,075.12 × 3,982.81
  4. Step 4: Simplify right side
    11,378.29x = 68,006,896.09
  5. Step 5: Solve for x
    x = 68,006,896.09/11,378.29
  6. Step 6: Final answer
    x = 5,976.90

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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.