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Finding the Fourth Proportional to 8,813.40, 12,162.20 and 4,834.40

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Solution

The fourth proportional to 8,813.40, 12,162.20 and 4,834.40 is: 6,671.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,813.40 : 12,162.20 = 4,834.40 : x
  2. Step 2: Convert to fraction form
    8,813.40/12,162.20 = 4,834.40/x
  3. Step 3: Cross multiply
    8,813.40x = 12,162.20 × 4,834.40
  4. Step 4: Simplify right side
    8,813.40x = 58,796,939.68
  5. Step 5: Solve for x
    x = 58,796,939.68/8,813.40
  6. Step 6: Final answer
    x = 6,671.31

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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.