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Finding the Fourth Proportional to 8,858.62, 13,289.57 and 3,664.90

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Solution

The fourth proportional to 8,858.62, 13,289.57 and 3,664.90 is: 5,498.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,858.62 : 13,289.57 = 3,664.90 : x
  2. Step 2: Convert to fraction form
    8,858.62/13,289.57 = 3,664.90/x
  3. Step 3: Cross multiply
    8,858.62x = 13,289.57 × 3,664.90
  4. Step 4: Simplify right side
    8,858.62x = 48,704,945.09
  5. Step 5: Solve for x
    x = 48,704,945.09/8,858.62
  6. Step 6: Final answer
    x = 5,498.03

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1.5x scale

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.