Home / 14,074.85-19,420.08-8,105.42

Finding the Fourth Proportional to 14,074.85, 19,420.08 and 8,105.42

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Solution

The fourth proportional to 14,074.85, 19,420.08 and 8,105.42 is: 11,183.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,074.85 : 19,420.08 = 8,105.42 : x
  2. Step 2: Convert to fraction form
    14,074.85/19,420.08 = 8,105.42/x
  3. Step 3: Cross multiply
    14,074.85x = 19,420.08 × 8,105.42
  4. Step 4: Simplify right side
    14,074.85x = 157,407,904.83
  5. Step 5: Solve for x
    x = 157,407,904.83/14,074.85
  6. Step 6: Final answer
    x = 11,183.63

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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.