Home / 11,900.20-17,850.46-5,660.86

Finding the Fourth Proportional to 11,900.20, 17,850.46 and 5,660.86

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Solution

The fourth proportional to 11,900.20, 17,850.46 and 5,660.86 is: 8,491.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,900.20 : 17,850.46 = 5,660.86 : x
  2. Step 2: Convert to fraction form
    11,900.20/17,850.46 = 5,660.86/x
  3. Step 3: Cross multiply
    11,900.20x = 17,850.46 × 5,660.86
  4. Step 4: Simplify right side
    11,900.20x = 101,048,955.00
  5. Step 5: Solve for x
    x = 101,048,955.00/11,900.20
  6. Step 6: Final answer
    x = 8,491.37

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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.