Home / 8,435.74-12,653.56-2,195.78

Finding the Fourth Proportional to 8,435.74, 12,653.56 and 2,195.78

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Solution

The fourth proportional to 8,435.74, 12,653.56 and 2,195.78 is: 3,293.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,435.74 : 12,653.56 = 2,195.78 : x
  2. Step 2: Convert to fraction form
    8,435.74/12,653.56 = 2,195.78/x
  3. Step 3: Cross multiply
    8,435.74x = 12,653.56 × 2,195.78
  4. Step 4: Simplify right side
    8,435.74x = 27,784,433.98
  5. Step 5: Solve for x
    x = 27,784,433.98/8,435.74
  6. Step 6: Final answer
    x = 3,293.66

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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.