Home / 11,115.40-16,674.90-4,190.44

Finding the Fourth Proportional to 11,115.40, 16,674.90 and 4,190.44

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Solution

The fourth proportional to 11,115.40, 16,674.90 and 4,190.44 is: 6,286.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,115.40 : 16,674.90 = 4,190.44 : x
  2. Step 2: Convert to fraction form
    11,115.40/16,674.90 = 4,190.44/x
  3. Step 3: Cross multiply
    11,115.40x = 16,674.90 × 4,190.44
  4. Step 4: Simplify right side
    11,115.40x = 69,875,167.96
  5. Step 5: Solve for x
    x = 69,875,167.96/11,115.40
  6. Step 6: Final answer
    x = 6,286.34

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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.