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Finding the Fourth Proportional to 8,307.80, 12,465.26 and 2,761.88

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Solution

The fourth proportional to 8,307.80, 12,465.26 and 2,761.88 is: 4,144.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,307.80 : 12,465.26 = 2,761.88 : x
  2. Step 2: Convert to fraction form
    8,307.80/12,465.26 = 2,761.88/x
  3. Step 3: Cross multiply
    8,307.80x = 12,465.26 × 2,761.88
  4. Step 4: Simplify right side
    8,307.80x = 34,427,552.29
  5. Step 5: Solve for x
    x = 34,427,552.29/8,307.80
  6. Step 6: Final answer
    x = 4,144.00

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.