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Finding the Fourth Proportional to 9,362.54, 12,979.48 and 8,863.18

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Solution

The fourth proportional to 9,362.54, 12,979.48 and 8,863.18 is: 12,287.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,362.54 : 12,979.48 = 8,863.18 : x
  2. Step 2: Convert to fraction form
    9,362.54/12,979.48 = 8,863.18/x
  3. Step 3: Cross multiply
    9,362.54x = 12,979.48 × 8,863.18
  4. Step 4: Simplify right side
    9,362.54x = 115,039,467.55
  5. Step 5: Solve for x
    x = 115,039,467.55/9,362.54
  6. Step 6: Final answer
    x = 12,287.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.