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Finding the Fourth Proportional to 8,813.88, 12,162.94 and 5,670.06

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Solution

The fourth proportional to 8,813.88, 12,162.94 and 5,670.06 is: 7,824.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.88 : 12,162.94 = 5,670.06 : x
  2. Step 2: Convert to fraction form
    8,813.88/12,162.94 = 5,670.06/x
  3. Step 3: Cross multiply
    8,813.88x = 12,162.94 × 5,670.06
  4. Step 4: Simplify right side
    8,813.88x = 68,964,599.58
  5. Step 5: Solve for x
    x = 68,964,599.58/8,813.88
  6. Step 6: Final answer
    x = 7,824.54

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.