Home / 12,909.35-19,361.99-3,550.07

Finding the Fourth Proportional to 12,909.35, 19,361.99 and 3,550.07

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Solution

The fourth proportional to 12,909.35, 19,361.99 and 3,550.07 is: 5,324.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,909.35 : 19,361.99 = 3,550.07 : x
  2. Step 2: Convert to fraction form
    12,909.35/19,361.99 = 3,550.07/x
  3. Step 3: Cross multiply
    12,909.35x = 19,361.99 × 3,550.07
  4. Step 4: Simplify right side
    12,909.35x = 68,736,305.28
  5. Step 5: Solve for x
    x = 68,736,305.28/12,909.35
  6. Step 6: Final answer
    x = 5,324.54

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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.