Home / 13,451.49-18,550.04-8,975.43

Finding the Fourth Proportional to 13,451.49, 18,550.04 and 8,975.43

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Solution

The fourth proportional to 13,451.49, 18,550.04 and 8,975.43 is: 12,377.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,451.49 : 18,550.04 = 8,975.43 : x
  2. Step 2: Convert to fraction form
    13,451.49/18,550.04 = 8,975.43/x
  3. Step 3: Cross multiply
    13,451.49x = 18,550.04 × 8,975.43
  4. Step 4: Simplify right side
    13,451.49x = 166,494,540.64
  5. Step 5: Solve for x
    x = 166,494,540.64/13,451.49
  6. Step 6: Final answer
    x = 12,377.41

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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.