Home / 11,455.55-17,189.93-6,190.57

Finding the Fourth Proportional to 11,455.55, 17,189.93 and 6,190.57

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Solution

The fourth proportional to 11,455.55, 17,189.93 and 6,190.57 is: 9,289.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,455.55 : 17,189.93 = 6,190.57 : x
  2. Step 2: Convert to fraction form
    11,455.55/17,189.93 = 6,190.57/x
  3. Step 3: Cross multiply
    11,455.55x = 17,189.93 × 6,190.57
  4. Step 4: Simplify right side
    11,455.55x = 106,415,464.96
  5. Step 5: Solve for x
    x = 106,415,464.96/11,455.55
  6. Step 6: Final answer
    x = 9,289.42

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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.