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Finding the Fourth Proportional to 8,156.46, 11,256.06 and 4,619.66

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Solution

The fourth proportional to 8,156.46, 11,256.06 and 4,619.66 is: 6,375.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,156.46 : 11,256.06 = 4,619.66 : x
  2. Step 2: Convert to fraction form
    8,156.46/11,256.06 = 4,619.66/x
  3. Step 3: Cross multiply
    8,156.46x = 11,256.06 × 4,619.66
  4. Step 4: Simplify right side
    8,156.46x = 51,999,170.14
  5. Step 5: Solve for x
    x = 51,999,170.14/8,156.46
  6. Step 6: Final answer
    x = 6,375.21

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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.