Home / 13,783.08-19,020.78-8,193

Finding the Fourth Proportional to 13,783.08, 19,020.78 and 8,193

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Solution

The fourth proportional to 13,783.08, 19,020.78 and 8,193 is: 11,306.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,783.08 : 19,020.78 = 8,193 : x
  2. Step 2: Convert to fraction form
    13,783.08/19,020.78 = 8,193/x
  3. Step 3: Cross multiply
    13,783.08x = 19,020.78 × 8,193
  4. Step 4: Simplify right side
    13,783.08x = 155,837,250.54
  5. Step 5: Solve for x
    x = 155,837,250.54/13,783.08
  6. Step 6: Final answer
    x = 11,306.42

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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.