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Finding the Fourth Proportional to 8,488.98, 12,733.65 and 2,645.64

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Solution

The fourth proportional to 8,488.98, 12,733.65 and 2,645.64 is: 3,968.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.98 : 12,733.65 = 2,645.64 : x
  2. Step 2: Convert to fraction form
    8,488.98/12,733.65 = 2,645.64/x
  3. Step 3: Cross multiply
    8,488.98x = 12,733.65 × 2,645.64
  4. Step 4: Simplify right side
    8,488.98x = 33,688,653.79
  5. Step 5: Solve for x
    x = 33,688,653.79/8,488.98
  6. Step 6: Final answer
    x = 3,968.52

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