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Finding the Fourth Proportional to 9,442.94, 12,976.56 and 9,009.32

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Solution

The fourth proportional to 9,442.94, 12,976.56 and 9,009.32 is: 12,380.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,442.94 : 12,976.56 = 9,009.32 : x
  2. Step 2: Convert to fraction form
    9,442.94/12,976.56 = 9,009.32/x
  3. Step 3: Cross multiply
    9,442.94x = 12,976.56 × 9,009.32
  4. Step 4: Simplify right side
    9,442.94x = 116,909,981.54
  5. Step 5: Solve for x
    x = 116,909,981.54/9,442.94
  6. Step 6: Final answer
    x = 12,380.68

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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.