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Finding the Fourth Proportional to 8,307.44, 12,461.13 and 2,761.21

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Solution

The fourth proportional to 8,307.44, 12,461.13 and 2,761.21 is: 4,141.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,307.44 : 12,461.13 = 2,761.21 : x
  2. Step 2: Convert to fraction form
    8,307.44/12,461.13 = 2,761.21/x
  3. Step 3: Cross multiply
    8,307.44x = 12,461.13 × 2,761.21
  4. Step 4: Simplify right side
    8,307.44x = 34,407,796.77
  5. Step 5: Solve for x
    x = 34,407,796.77/8,307.44
  6. Step 6: Final answer
    x = 4,141.81

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1.5x scale

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.