Home / 11,425.80-17,138.70-3,635.40

Finding the Fourth Proportional to 11,425.80, 17,138.70 and 3,635.40

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Solution

The fourth proportional to 11,425.80, 17,138.70 and 3,635.40 is: 5,453.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,425.80 : 17,138.70 = 3,635.40 : x
  2. Step 2: Convert to fraction form
    11,425.80/17,138.70 = 3,635.40/x
  3. Step 3: Cross multiply
    11,425.80x = 17,138.70 × 3,635.40
  4. Step 4: Simplify right side
    11,425.80x = 62,306,029.98
  5. Step 5: Solve for x
    x = 62,306,029.98/11,425.80
  6. Step 6: Final answer
    x = 5,453.10

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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.