Home / 14,121.32-19,481.58-8,148.75

Finding the Fourth Proportional to 14,121.32, 19,481.58 and 8,148.75

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Solution

The fourth proportional to 14,121.32, 19,481.58 and 8,148.75 is: 11,241.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.32 : 19,481.58 = 8,148.75 : x
  2. Step 2: Convert to fraction form
    14,121.32/19,481.58 = 8,148.75/x
  3. Step 3: Cross multiply
    14,121.32x = 19,481.58 × 8,148.75
  4. Step 4: Simplify right side
    14,121.32x = 158,750,451.97
  5. Step 5: Solve for x
    x = 158,750,451.97/14,121.32
  6. Step 6: Final answer
    x = 11,241.90

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Double scale
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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.