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Finding the Fourth Proportional to 11,915.16, 17,874.34 and 4,522.36

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Solution

The fourth proportional to 11,915.16, 17,874.34 and 4,522.36 is: 6,784.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,915.16 : 17,874.34 = 4,522.36 : x
  2. Step 2: Convert to fraction form
    11,915.16/17,874.34 = 4,522.36/x
  3. Step 3: Cross multiply
    11,915.16x = 17,874.34 × 4,522.36
  4. Step 4: Simplify right side
    11,915.16x = 80,834,200.24
  5. Step 5: Solve for x
    x = 80,834,200.24/11,915.16
  6. Step 6: Final answer
    x = 6,784.15

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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.