Home / 12,721.91-19,075.95-3,836.03

Finding the Fourth Proportional to 12,721.91, 19,075.95 and 3,836.03

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Solution

The fourth proportional to 12,721.91, 19,075.95 and 3,836.03 is: 5,751.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,721.91 : 19,075.95 = 3,836.03 : x
  2. Step 2: Convert to fraction form
    12,721.91/19,075.95 = 3,836.03/x
  3. Step 3: Cross multiply
    12,721.91x = 19,075.95 × 3,836.03
  4. Step 4: Simplify right side
    12,721.91x = 73,175,821.10
  5. Step 5: Solve for x
    x = 73,175,821.10/12,721.91
  6. Step 6: Final answer
    x = 5,751.95

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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.