Home / 18,161.64-27,245.70-7,074.36

Finding the Fourth Proportional to 18,161.64, 27,245.70 and 7,074.36

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Solution

The fourth proportional to 18,161.64, 27,245.70 and 7,074.36 is: 10,612.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,161.64 : 27,245.70 = 7,074.36 : x
  2. Step 2: Convert to fraction form
    18,161.64/27,245.70 = 7,074.36/x
  3. Step 3: Cross multiply
    18,161.64x = 27,245.70 × 7,074.36
  4. Step 4: Simplify right side
    18,161.64x = 192,745,890.25
  5. Step 5: Solve for x
    x = 192,745,890.25/18,161.64
  6. Step 6: Final answer
    x = 10,612.80

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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.