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Finding the Fourth Proportional to 8,872.62, 12,243.76 and 5,335.14

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Solution

The fourth proportional to 8,872.62, 12,243.76 and 5,335.14 is: 7,362.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,872.62 : 12,243.76 = 5,335.14 : x
  2. Step 2: Convert to fraction form
    8,872.62/12,243.76 = 5,335.14/x
  3. Step 3: Cross multiply
    8,872.62x = 12,243.76 × 5,335.14
  4. Step 4: Simplify right side
    8,872.62x = 65,322,173.73
  5. Step 5: Solve for x
    x = 65,322,173.73/8,872.62
  6. Step 6: Final answer
    x = 7,362.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.