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Finding the Fourth Proportional to 8,785.73, 12,124.40 and 4,806.75

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Solution

The fourth proportional to 8,785.73, 12,124.40 and 4,806.75 is: 6,633.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,785.73 : 12,124.40 = 4,806.75 : x
  2. Step 2: Convert to fraction form
    8,785.73/12,124.40 = 4,806.75/x
  3. Step 3: Cross multiply
    8,785.73x = 12,124.40 × 4,806.75
  4. Step 4: Simplify right side
    8,785.73x = 58,278,935.67
  5. Step 5: Solve for x
    x = 58,278,935.67/8,785.73
  6. Step 6: Final answer
    x = 6,633.37

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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.