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Finding the Fourth Proportional to 8,886.84, 13,321.62 and 3,694.20

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Solution

The fourth proportional to 8,886.84, 13,321.62 and 3,694.20 is: 5,537.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.84 : 13,321.62 = 3,694.20 : x
  2. Step 2: Convert to fraction form
    8,886.84/13,321.62 = 3,694.20/x
  3. Step 3: Cross multiply
    8,886.84x = 13,321.62 × 3,694.20
  4. Step 4: Simplify right side
    8,886.84x = 49,212,728.60
  5. Step 5: Solve for x
    x = 49,212,728.60/8,886.84
  6. Step 6: Final answer
    x = 5,537.71

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1.5x scale

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.