Home / 14,121.03-19,481.19-8,148.47

Finding the Fourth Proportional to 14,121.03, 19,481.19 and 8,148.47

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Solution

The fourth proportional to 14,121.03, 19,481.19 and 8,148.47 is: 11,241.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.03 : 19,481.19 = 8,148.47 : x
  2. Step 2: Convert to fraction form
    14,121.03/19,481.19 = 8,148.47/x
  3. Step 3: Cross multiply
    14,121.03x = 19,481.19 × 8,148.47
  4. Step 4: Simplify right side
    14,121.03x = 158,741,810.15
  5. Step 5: Solve for x
    x = 158,741,810.15/14,121.03
  6. Step 6: Final answer
    x = 11,241.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.