Home / 8,974.78-13,464.87-3,428.26

Finding the Fourth Proportional to 8,974.78, 13,464.87 and 3,428.26

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Solution

The fourth proportional to 8,974.78, 13,464.87 and 3,428.26 is: 5,143.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974.78 : 13,464.87 = 3,428.26 : x
  2. Step 2: Convert to fraction form
    8,974.78/13,464.87 = 3,428.26/x
  3. Step 3: Cross multiply
    8,974.78x = 13,464.87 × 3,428.26
  4. Step 4: Simplify right side
    8,974.78x = 46,161,075.23
  5. Step 5: Solve for x
    x = 46,161,075.23/8,974.78
  6. Step 6: Final answer
    x = 5,143.42

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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.