Home / 12,286.42-16,954.62-6,980.50

Finding the Fourth Proportional to 12,286.42, 16,954.62 and 6,980.50

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Solution

The fourth proportional to 12,286.42, 16,954.62 and 6,980.50 is: 9,632.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.42 : 16,954.62 = 6,980.50 : x
  2. Step 2: Convert to fraction form
    12,286.42/16,954.62 = 6,980.50/x
  3. Step 3: Cross multiply
    12,286.42x = 16,954.62 × 6,980.50
  4. Step 4: Simplify right side
    12,286.42x = 118,351,724.91
  5. Step 5: Solve for x
    x = 118,351,724.91/12,286.42
  6. Step 6: Final answer
    x = 9,632.73

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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.