Home / 8,622.20-12,934.74-3,074.24

Finding the Fourth Proportional to 8,622.20, 12,934.74 and 3,074.24

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Solution

The fourth proportional to 8,622.20, 12,934.74 and 3,074.24 is: 4,611.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,622.20 : 12,934.74 = 3,074.24 : x
  2. Step 2: Convert to fraction form
    8,622.20/12,934.74 = 3,074.24/x
  3. Step 3: Cross multiply
    8,622.20x = 12,934.74 × 3,074.24
  4. Step 4: Simplify right side
    8,622.20x = 39,764,495.10
  5. Step 5: Solve for x
    x = 39,764,495.10/8,622.20
  6. Step 6: Final answer
    x = 4,611.87

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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.