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Finding the Fourth Proportional to 8,608.14, 12,915.86 and 4,707.99

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Solution

The fourth proportional to 8,608.14, 12,915.86 and 4,707.99 is: 7,063.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,608.14 : 12,915.86 = 4,707.99 : x
  2. Step 2: Convert to fraction form
    8,608.14/12,915.86 = 4,707.99/x
  3. Step 3: Cross multiply
    8,608.14x = 12,915.86 × 4,707.99
  4. Step 4: Simplify right side
    8,608.14x = 60,807,716.18
  5. Step 5: Solve for x
    x = 60,807,716.18/8,608.14
  6. Step 6: Final answer
    x = 7,063.98

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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.