Home / 11,120.82-16,697.84-6,986.99

Finding the Fourth Proportional to 11,120.82, 16,697.84 and 6,986.99

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Solution

The fourth proportional to 11,120.82, 16,697.84 and 6,986.99 is: 10,490.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,120.82 : 16,697.84 = 6,986.99 : x
  2. Step 2: Convert to fraction form
    11,120.82/16,697.84 = 6,986.99/x
  3. Step 3: Cross multiply
    11,120.82x = 16,697.84 × 6,986.99
  4. Step 4: Simplify right side
    11,120.82x = 116,667,522.68
  5. Step 5: Solve for x
    x = 116,667,522.68/11,120.82
  6. Step 6: Final answer
    x = 10,490.91

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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.