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Finding the Fourth Proportional to 8,435.42, 12,653.93 and 2,195.42

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Solution

The fourth proportional to 8,435.42, 12,653.93 and 2,195.42 is: 3,293.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,435.42 : 12,653.93 = 2,195.42 : x
  2. Step 2: Convert to fraction form
    8,435.42/12,653.93 = 2,195.42/x
  3. Step 3: Cross multiply
    8,435.42x = 12,653.93 × 2,195.42
  4. Step 4: Simplify right side
    8,435.42x = 27,780,616.75
  5. Step 5: Solve for x
    x = 27,780,616.75/8,435.42
  6. Step 6: Final answer
    x = 3,293.33

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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.