Home / 13,441.81-20,162.75-4,081.90

Finding the Fourth Proportional to 13,441.81, 20,162.75 and 4,081.90

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Solution

The fourth proportional to 13,441.81, 20,162.75 and 4,081.90 is: 6,122.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,441.81 : 20,162.75 = 4,081.90 : x
  2. Step 2: Convert to fraction form
    13,441.81/20,162.75 = 4,081.90/x
  3. Step 3: Cross multiply
    13,441.81x = 20,162.75 × 4,081.90
  4. Step 4: Simplify right side
    13,441.81x = 82,302,329.23
  5. Step 5: Solve for x
    x = 82,302,329.23/13,441.81
  6. Step 6: Final answer
    x = 6,122.86

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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.