Home / 12,209.21-18,311.04-5,880.86

Finding the Fourth Proportional to 12,209.21, 18,311.04 and 5,880.86

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Solution

The fourth proportional to 12,209.21, 18,311.04 and 5,880.86 is: 8,819.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209.21 : 18,311.04 = 5,880.86 : x
  2. Step 2: Convert to fraction form
    12,209.21/18,311.04 = 5,880.86/x
  3. Step 3: Cross multiply
    12,209.21x = 18,311.04 × 5,880.86
  4. Step 4: Simplify right side
    12,209.21x = 107,684,583.42
  5. Step 5: Solve for x
    x = 107,684,583.42/12,209.21
  6. Step 6: Final answer
    x = 8,819.95

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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.