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Finding the Fourth Proportional to 8,208.64, 12,260.58 and 7,427.44

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Solution

The fourth proportional to 8,208.64, 12,260.58 and 7,427.44 is: 11,093.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,208.64 : 12,260.58 = 7,427.44 : x
  2. Step 2: Convert to fraction form
    8,208.64/12,260.58 = 7,427.44/x
  3. Step 3: Cross multiply
    8,208.64x = 12,260.58 × 7,427.44
  4. Step 4: Simplify right side
    8,208.64x = 91,064,722.32
  5. Step 5: Solve for x
    x = 91,064,722.32/8,208.64
  6. Step 6: Final answer
    x = 11,093.76

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.