Home / 11,147.25-16,721.23-4,129.03

Finding the Fourth Proportional to 11,147.25, 16,721.23 and 4,129.03

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Solution

The fourth proportional to 11,147.25, 16,721.23 and 4,129.03 is: 6,193.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,147.25 : 16,721.23 = 4,129.03 : x
  2. Step 2: Convert to fraction form
    11,147.25/16,721.23 = 4,129.03/x
  3. Step 3: Cross multiply
    11,147.25x = 16,721.23 × 4,129.03
  4. Step 4: Simplify right side
    11,147.25x = 69,042,460.31
  5. Step 5: Solve for x
    x = 69,042,460.31/11,147.25
  6. Step 6: Final answer
    x = 6,193.68

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1.5x scale

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.