Home / 12,003.24-18,004.80-6,156.60

Finding the Fourth Proportional to 12,003.24, 18,004.80 and 6,156.60

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Solution

The fourth proportional to 12,003.24, 18,004.80 and 6,156.60 is: 9,234.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,003.24 : 18,004.80 = 6,156.60 : x
  2. Step 2: Convert to fraction form
    12,003.24/18,004.80 = 6,156.60/x
  3. Step 3: Cross multiply
    12,003.24x = 18,004.80 × 6,156.60
  4. Step 4: Simplify right side
    12,003.24x = 110,848,351.68
  5. Step 5: Solve for x
    x = 110,848,351.68/12,003.24
  6. Step 6: Final answer
    x = 9,234.87

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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.