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Finding the Fourth Proportional to 8,956.98, 12,368.09 and 7,472.68

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Solution

The fourth proportional to 8,956.98, 12,368.09 and 7,472.68 is: 10,318.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,956.98 : 12,368.09 = 7,472.68 : x
  2. Step 2: Convert to fraction form
    8,956.98/12,368.09 = 7,472.68/x
  3. Step 3: Cross multiply
    8,956.98x = 12,368.09 × 7,472.68
  4. Step 4: Simplify right side
    8,956.98x = 92,422,766.54
  5. Step 5: Solve for x
    x = 92,422,766.54/8,956.98
  6. Step 6: Final answer
    x = 10,318.52

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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.