Home / 13,399.85-20,103.83-4,635.65

Finding the Fourth Proportional to 13,399.85, 20,103.83 and 4,635.65

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Solution

The fourth proportional to 13,399.85, 20,103.83 and 4,635.65 is: 6,954.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,399.85 : 20,103.83 = 4,635.65 : x
  2. Step 2: Convert to fraction form
    13,399.85/20,103.83 = 4,635.65/x
  3. Step 3: Cross multiply
    13,399.85x = 20,103.83 × 4,635.65
  4. Step 4: Simplify right side
    13,399.85x = 93,194,195.84
  5. Step 5: Solve for x
    x = 93,194,195.84/13,399.85
  6. Step 6: Final answer
    x = 6,954.87

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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.