Home / 8,137.30-12,205.95-2,590.60

Finding the Fourth Proportional to 8,137.30, 12,205.95 and 2,590.60

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Solution

The fourth proportional to 8,137.30, 12,205.95 and 2,590.60 is: 3,885.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,137.30 : 12,205.95 = 2,590.60 : x
  2. Step 2: Convert to fraction form
    8,137.30/12,205.95 = 2,590.60/x
  3. Step 3: Cross multiply
    8,137.30x = 12,205.95 × 2,590.60
  4. Step 4: Simplify right side
    8,137.30x = 31,620,734.07
  5. Step 5: Solve for x
    x = 31,620,734.07/8,137.30
  6. Step 6: Final answer
    x = 3,885.90

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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.