Home / 13,813.37-19,064.94-8,147.79

Finding the Fourth Proportional to 13,813.37, 19,064.94 and 8,147.79

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Solution

The fourth proportional to 13,813.37, 19,064.94 and 8,147.79 is: 11,245.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,813.37 : 19,064.94 = 8,147.79 : x
  2. Step 2: Convert to fraction form
    13,813.37/19,064.94 = 8,147.79/x
  3. Step 3: Cross multiply
    13,813.37x = 19,064.94 × 8,147.79
  4. Step 4: Simplify right side
    13,813.37x = 155,337,096.93
  5. Step 5: Solve for x
    x = 155,337,096.93/13,813.37
  6. Step 6: Final answer
    x = 11,245.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.