Home / 9,198.06-12,678.54-6,212.94

Finding the Fourth Proportional to 9,198.06, 12,678.54 and 6,212.94

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Solution

The fourth proportional to 9,198.06, 12,678.54 and 6,212.94 is: 8,563.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,198.06 : 12,678.54 = 6,212.94 : x
  2. Step 2: Convert to fraction form
    9,198.06/12,678.54 = 6,212.94/x
  3. Step 3: Cross multiply
    9,198.06x = 12,678.54 × 6,212.94
  4. Step 4: Simplify right side
    9,198.06x = 78,771,008.31
  5. Step 5: Solve for x
    x = 78,771,008.31/9,198.06
  6. Step 6: Final answer
    x = 8,563.87

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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.