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Finding the Fourth Proportional to 12,644.04, 18,976.99 and 4,858.32

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Solution

The fourth proportional to 12,644.04, 18,976.99 and 4,858.32 is: 7,291.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,644.04 : 18,976.99 = 4,858.32 : x
  2. Step 2: Convert to fraction form
    12,644.04/18,976.99 = 4,858.32/x
  3. Step 3: Cross multiply
    12,644.04x = 18,976.99 × 4,858.32
  4. Step 4: Simplify right side
    12,644.04x = 92,196,290.06
  5. Step 5: Solve for x
    x = 92,196,290.06/12,644.04
  6. Step 6: Final answer
    x = 7,291.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.