Home / 12,112.66-18,164.67-3,790.18

Finding the Fourth Proportional to 12,112.66, 18,164.67 and 3,790.18

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Solution

The fourth proportional to 12,112.66, 18,164.67 and 3,790.18 is: 5,683.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,112.66 : 18,164.67 = 3,790.18 : x
  2. Step 2: Convert to fraction form
    12,112.66/18,164.67 = 3,790.18/x
  3. Step 3: Cross multiply
    12,112.66x = 18,164.67 × 3,790.18
  4. Step 4: Simplify right side
    12,112.66x = 68,847,368.94
  5. Step 5: Solve for x
    x = 68,847,368.94/12,112.66
  6. Step 6: Final answer
    x = 5,683.92

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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.