Home / 8,186.74-12,280.88-3,255.26

Finding the Fourth Proportional to 8,186.74, 12,280.88 and 3,255.26

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Solution

The fourth proportional to 8,186.74, 12,280.88 and 3,255.26 is: 4,883.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,186.74 : 12,280.88 = 3,255.26 : x
  2. Step 2: Convert to fraction form
    8,186.74/12,280.88 = 3,255.26/x
  3. Step 3: Cross multiply
    8,186.74x = 12,280.88 × 3,255.26
  4. Step 4: Simplify right side
    8,186.74x = 39,977,404.16
  5. Step 5: Solve for x
    x = 39,977,404.16/8,186.74
  6. Step 6: Final answer
    x = 4,883.19

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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.