Home / 8,627.20-12,940.86-3,692.68

Finding the Fourth Proportional to 8,627.20, 12,940.86 and 3,692.68

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Solution

The fourth proportional to 8,627.20, 12,940.86 and 3,692.68 is: 5,539.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,627.20 : 12,940.86 = 3,692.68 : x
  2. Step 2: Convert to fraction form
    8,627.20/12,940.86 = 3,692.68/x
  3. Step 3: Cross multiply
    8,627.20x = 12,940.86 × 3,692.68
  4. Step 4: Simplify right side
    8,627.20x = 47,786,454.90
  5. Step 5: Solve for x
    x = 47,786,454.90/8,627.20
  6. Step 6: Final answer
    x = 5,539.05

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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.