Home / 12,003.60-18,004.74-3,683.61

Finding the Fourth Proportional to 12,003.60, 18,004.74 and 3,683.61

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Solution

The fourth proportional to 12,003.60, 18,004.74 and 3,683.61 is: 5,525.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,003.60 : 18,004.74 = 3,683.61 : x
  2. Step 2: Convert to fraction form
    12,003.60/18,004.74 = 3,683.61/x
  3. Step 3: Cross multiply
    12,003.60x = 18,004.74 × 3,683.61
  4. Step 4: Simplify right side
    12,003.60x = 66,322,440.31
  5. Step 5: Solve for x
    x = 66,322,440.31/12,003.60
  6. Step 6: Final answer
    x = 5,525.21

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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.