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Finding the Fourth Proportional to 8,772.62, 12,106.55 and 4,793.90

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Solution

The fourth proportional to 8,772.62, 12,106.55 and 4,793.90 is: 6,615.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,772.62 : 12,106.55 = 4,793.90 : x
  2. Step 2: Convert to fraction form
    8,772.62/12,106.55 = 4,793.90/x
  3. Step 3: Cross multiply
    8,772.62x = 12,106.55 × 4,793.90
  4. Step 4: Simplify right side
    8,772.62x = 58,037,541.50
  5. Step 5: Solve for x
    x = 58,037,541.50/8,772.62
  6. Step 6: Final answer
    x = 6,615.76

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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.