Home / 15,181.70-20,951.06-8,467.61

Finding the Fourth Proportional to 15,181.70, 20,951.06 and 8,467.61

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Solution

The fourth proportional to 15,181.70, 20,951.06 and 8,467.61 is: 11,685.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,181.70 : 20,951.06 = 8,467.61 : x
  2. Step 2: Convert to fraction form
    15,181.70/20,951.06 = 8,467.61/x
  3. Step 3: Cross multiply
    15,181.70x = 20,951.06 × 8,467.61
  4. Step 4: Simplify right side
    15,181.70x = 177,405,258.07
  5. Step 5: Solve for x
    x = 177,405,258.07/15,181.70
  6. Step 6: Final answer
    x = 11,685.47

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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.