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Finding the Fourth Proportional to 12,532.21, 18,804.44 and 8,858.05

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Solution

The fourth proportional to 12,532.21, 18,804.44 and 8,858.05 is: 13,291.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,532.21 : 18,804.44 = 8,858.05 : x
  2. Step 2: Convert to fraction form
    12,532.21/18,804.44 = 8,858.05/x
  3. Step 3: Cross multiply
    12,532.21x = 18,804.44 × 8,858.05
  4. Step 4: Simplify right side
    12,532.21x = 166,570,669.74
  5. Step 5: Solve for x
    x = 166,570,669.74/12,532.21
  6. Step 6: Final answer
    x = 13,291.40

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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.