Home / 11,433.80-17,149.10-3,643.40

Finding the Fourth Proportional to 11,433.80, 17,149.10 and 3,643.40

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Solution

The fourth proportional to 11,433.80, 17,149.10 and 3,643.40 is: 5,464.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,433.80 : 17,149.10 = 3,643.40 : x
  2. Step 2: Convert to fraction form
    11,433.80/17,149.10 = 3,643.40/x
  3. Step 3: Cross multiply
    11,433.80x = 17,149.10 × 3,643.40
  4. Step 4: Simplify right side
    11,433.80x = 62,481,030.94
  5. Step 5: Solve for x
    x = 62,481,030.94/11,433.80
  6. Step 6: Final answer
    x = 5,464.59

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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.