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Finding the Fourth Proportional to 8,123.94, 11,211.05 and 4,397.94

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Solution

The fourth proportional to 8,123.94, 11,211.05 and 4,397.94 is: 6,069.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,123.94 : 11,211.05 = 4,397.94 : x
  2. Step 2: Convert to fraction form
    8,123.94/11,211.05 = 4,397.94/x
  3. Step 3: Cross multiply
    8,123.94x = 11,211.05 × 4,397.94
  4. Step 4: Simplify right side
    8,123.94x = 49,305,536.23
  5. Step 5: Solve for x
    x = 49,305,536.23/8,123.94
  6. Step 6: Final answer
    x = 6,069.17

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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.