Home / 13,758.41-20,633.67-3,898.69

Finding the Fourth Proportional to 13,758.41, 20,633.67 and 3,898.69

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Solution

The fourth proportional to 13,758.41, 20,633.67 and 3,898.69 is: 5,846.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,758.41 : 20,633.67 = 3,898.69 : x
  2. Step 2: Convert to fraction form
    13,758.41/20,633.67 = 3,898.69/x
  3. Step 3: Cross multiply
    13,758.41x = 20,633.67 × 3,898.69
  4. Step 4: Simplify right side
    13,758.41x = 80,444,231.31
  5. Step 5: Solve for x
    x = 80,444,231.31/13,758.41
  6. Step 6: Final answer
    x = 5,846.91

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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.