Home / 13,674.96-20,515.90-3,814.23

Finding the Fourth Proportional to 13,674.96, 20,515.90 and 3,814.23

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Solution

The fourth proportional to 13,674.96, 20,515.90 and 3,814.23 is: 5,722.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,674.96 : 20,515.90 = 3,814.23 : x
  2. Step 2: Convert to fraction form
    13,674.96/20,515.90 = 3,814.23/x
  3. Step 3: Cross multiply
    13,674.96x = 20,515.90 × 3,814.23
  4. Step 4: Simplify right side
    13,674.96x = 78,252,435.81
  5. Step 5: Solve for x
    x = 78,252,435.81/13,674.96
  6. Step 6: Final answer
    x = 5,722.32

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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.