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Finding the Fourth Proportional to 8,809.39, 13,212.90 and 2,235.01

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Solution

The fourth proportional to 8,809.39, 13,212.90 and 2,235.01 is: 3,352.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,809.39 : 13,212.90 = 2,235.01 : x
  2. Step 2: Convert to fraction form
    8,809.39/13,212.90 = 2,235.01/x
  3. Step 3: Cross multiply
    8,809.39x = 13,212.90 × 2,235.01
  4. Step 4: Simplify right side
    8,809.39x = 29,530,963.63
  5. Step 5: Solve for x
    x = 29,530,963.63/8,809.39
  6. Step 6: Final answer
    x = 3,352.21

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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.