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Finding the Fourth Proportional to 8,051.56, 12,079.13 and 3,307.72

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Solution

The fourth proportional to 8,051.56, 12,079.13 and 3,307.72 is: 4,962.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,051.56 : 12,079.13 = 3,307.72 : x
  2. Step 2: Convert to fraction form
    8,051.56/12,079.13 = 3,307.72/x
  3. Step 3: Cross multiply
    8,051.56x = 12,079.13 × 3,307.72
  4. Step 4: Simplify right side
    8,051.56x = 39,954,357.96
  5. Step 5: Solve for x
    x = 39,954,357.96/8,051.56
  6. Step 6: Final answer
    x = 4,962.31

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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.