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Finding the Fourth Proportional to 8,894.70, 12,274.47 and 4,915.71

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Solution

The fourth proportional to 8,894.70, 12,274.47 and 4,915.71 is: 6,783.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,894.70 : 12,274.47 = 4,915.71 : x
  2. Step 2: Convert to fraction form
    8,894.70/12,274.47 = 4,915.71/x
  3. Step 3: Cross multiply
    8,894.70x = 12,274.47 × 4,915.71
  4. Step 4: Simplify right side
    8,894.70x = 60,337,734.92
  5. Step 5: Solve for x
    x = 60,337,734.92/8,894.70
  6. Step 6: Final answer
    x = 6,783.56

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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.