Home / 18,781.85-28,169.94-6,299.75

Finding the Fourth Proportional to 18,781.85, 28,169.94 and 6,299.75

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Solution

The fourth proportional to 18,781.85, 28,169.94 and 6,299.75 is: 9,448.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,781.85 : 28,169.94 = 6,299.75 : x
  2. Step 2: Convert to fraction form
    18,781.85/28,169.94 = 6,299.75/x
  3. Step 3: Cross multiply
    18,781.85x = 28,169.94 × 6,299.75
  4. Step 4: Simplify right side
    18,781.85x = 177,463,579.52
  5. Step 5: Solve for x
    x = 177,463,579.52/18,781.85
  6. Step 6: Final answer
    x = 9,448.67

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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.