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Finding the Fourth Proportional to 8,770.67, 12,102.89 and 4,790.94

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Solution

The fourth proportional to 8,770.67, 12,102.89 and 4,790.94 is: 6,611.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,770.67 : 12,102.89 = 4,790.94 : x
  2. Step 2: Convert to fraction form
    8,770.67/12,102.89 = 4,790.94/x
  3. Step 3: Cross multiply
    8,770.67x = 12,102.89 × 4,790.94
  4. Step 4: Simplify right side
    8,770.67x = 57,984,231.79
  5. Step 5: Solve for x
    x = 57,984,231.79/8,770.67
  6. Step 6: Final answer
    x = 6,611.15

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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.