Home / 11,983.55-17,977.14-4,191.75

Finding the Fourth Proportional to 11,983.55, 17,977.14 and 4,191.75

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Solution

The fourth proportional to 11,983.55, 17,977.14 and 4,191.75 is: 6,288.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,983.55 : 17,977.14 = 4,191.75 : x
  2. Step 2: Convert to fraction form
    11,983.55/17,977.14 = 4,191.75/x
  3. Step 3: Cross multiply
    11,983.55x = 17,977.14 × 4,191.75
  4. Step 4: Simplify right side
    11,983.55x = 75,355,676.60
  5. Step 5: Solve for x
    x = 75,355,676.60/11,983.55
  6. Step 6: Final answer
    x = 6,288.26

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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.