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Finding the Fourth Proportional to 8,974.46, 12,384.47 and 4,995.47

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Solution

The fourth proportional to 8,974.46, 12,384.47 and 4,995.47 is: 6,893.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974.46 : 12,384.47 = 4,995.47 : x
  2. Step 2: Convert to fraction form
    8,974.46/12,384.47 = 4,995.47/x
  3. Step 3: Cross multiply
    8,974.46x = 12,384.47 × 4,995.47
  4. Step 4: Simplify right side
    8,974.46x = 61,866,198.92
  5. Step 5: Solve for x
    x = 61,866,198.92/8,974.46
  6. Step 6: Final answer
    x = 6,893.59

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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.