Home / 9,198.60-12,694.36-5,219.88

Finding the Fourth Proportional to 9,198.60, 12,694.36 and 5,219.88

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Solution

The fourth proportional to 9,198.60, 12,694.36 and 5,219.88 is: 7,203.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,198.60 : 12,694.36 = 5,219.88 : x
  2. Step 2: Convert to fraction form
    9,198.60/12,694.36 = 5,219.88/x
  3. Step 3: Cross multiply
    9,198.60x = 12,694.36 × 5,219.88
  4. Step 4: Simplify right side
    9,198.60x = 66,262,972.41
  5. Step 5: Solve for x
    x = 66,262,972.41/9,198.60
  6. Step 6: Final answer
    x = 7,203.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.