Home / 8,131.98-12,197.34-2,585.64

Finding the Fourth Proportional to 8,131.98, 12,197.34 and 2,585.64

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Solution

The fourth proportional to 8,131.98, 12,197.34 and 2,585.64 is: 3,878.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,131.98 : 12,197.34 = 2,585.64 : x
  2. Step 2: Convert to fraction form
    8,131.98/12,197.34 = 2,585.64/x
  3. Step 3: Cross multiply
    8,131.98x = 12,197.34 × 2,585.64
  4. Step 4: Simplify right side
    8,131.98x = 31,537,930.20
  5. Step 5: Solve for x
    x = 31,537,930.20/8,131.98
  6. Step 6: Final answer
    x = 3,878.26

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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.