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Finding the Fourth Proportional to 8,920.98, 12,311.73 and 7,599.06

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Solution

The fourth proportional to 8,920.98, 12,311.73 and 7,599.06 is: 10,487.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,920.98 : 12,311.73 = 7,599.06 : x
  2. Step 2: Convert to fraction form
    8,920.98/12,311.73 = 7,599.06/x
  3. Step 3: Cross multiply
    8,920.98x = 12,311.73 × 7,599.06
  4. Step 4: Simplify right side
    8,920.98x = 93,557,574.97
  5. Step 5: Solve for x
    x = 93,557,574.97/8,920.98
  6. Step 6: Final answer
    x = 10,487.37

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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.