Home / 8,118.26-12,177.42-2,575.49

Finding the Fourth Proportional to 8,118.26, 12,177.42 and 2,575.49

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Solution

The fourth proportional to 8,118.26, 12,177.42 and 2,575.49 is: 3,863.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,118.26 : 12,177.42 = 2,575.49 : x
  2. Step 2: Convert to fraction form
    8,118.26/12,177.42 = 2,575.49/x
  3. Step 3: Cross multiply
    8,118.26x = 12,177.42 × 2,575.49
  4. Step 4: Simplify right side
    8,118.26x = 31,362,810.56
  5. Step 5: Solve for x
    x = 31,362,810.56/8,118.26
  6. Step 6: Final answer
    x = 3,863.25

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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.