Home / 18,075.75-27,112.84-4,928.09

Finding the Fourth Proportional to 18,075.75, 27,112.84 and 4,928.09

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Solution

The fourth proportional to 18,075.75, 27,112.84 and 4,928.09 is: 7,391.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,075.75 : 27,112.84 = 4,928.09 : x
  2. Step 2: Convert to fraction form
    18,075.75/27,112.84 = 4,928.09/x
  3. Step 3: Cross multiply
    18,075.75x = 27,112.84 × 4,928.09
  4. Step 4: Simplify right side
    18,075.75x = 133,614,367.79
  5. Step 5: Solve for x
    x = 133,614,367.79/18,075.75
  6. Step 6: Final answer
    x = 7,391.91

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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.