Home / 12,197.58-18,296.55-3,878.88

Finding the Fourth Proportional to 12,197.58, 18,296.55 and 3,878.88

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Solution

The fourth proportional to 12,197.58, 18,296.55 and 3,878.88 is: 5,818.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,197.58 : 18,296.55 = 3,878.88 : x
  2. Step 2: Convert to fraction form
    12,197.58/18,296.55 = 3,878.88/x
  3. Step 3: Cross multiply
    12,197.58x = 18,296.55 × 3,878.88
  4. Step 4: Simplify right side
    12,197.58x = 70,970,121.86
  5. Step 5: Solve for x
    x = 70,970,121.86/12,197.58
  6. Step 6: Final answer
    x = 5,818.38

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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.