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Finding the Fourth Proportional to 8,915.36, 13,388.23 and 7,433.06

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Solution

The fourth proportional to 8,915.36, 13,388.23 and 7,433.06 is: 11,162.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,915.36 : 13,388.23 = 7,433.06 : x
  2. Step 2: Convert to fraction form
    8,915.36/13,388.23 = 7,433.06/x
  3. Step 3: Cross multiply
    8,915.36x = 13,388.23 × 7,433.06
  4. Step 4: Simplify right side
    8,915.36x = 99,515,516.88
  5. Step 5: Solve for x
    x = 99,515,516.88/8,915.36
  6. Step 6: Final answer
    x = 11,162.25

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.