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Finding the Fourth Proportional to 8,851.84, 13,274 and 3,918

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Solution

The fourth proportional to 8,851.84, 13,274 and 3,918 is: 5,875.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,851.84 : 13,274 = 3,918 : x
  2. Step 2: Convert to fraction form
    8,851.84/13,274 = 3,918/x
  3. Step 3: Cross multiply
    8,851.84x = 13,274 × 3,918
  4. Step 4: Simplify right side
    8,851.84x = 52,007,532
  5. Step 5: Solve for x
    x = 52,007,532/8,851.84
  6. Step 6: Final answer
    x = 5,875.34

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Why These Related Problems?

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