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Finding the Fourth Proportional to 9,361.06, 12,935.37 and 8,905.48

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Solution

The fourth proportional to 9,361.06, 12,935.37 and 8,905.48 is: 12,305.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,361.06 : 12,935.37 = 8,905.48 : x
  2. Step 2: Convert to fraction form
    9,361.06/12,935.37 = 8,905.48/x
  3. Step 3: Cross multiply
    9,361.06x = 12,935.37 × 8,905.48
  4. Step 4: Simplify right side
    9,361.06x = 115,195,678.83
  5. Step 5: Solve for x
    x = 115,195,678.83/9,361.06
  6. Step 6: Final answer
    x = 12,305.84

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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.