Home / 12,525.87-18,786.78-3,759.24

Finding the Fourth Proportional to 12,525.87, 18,786.78 and 3,759.24

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Solution

The fourth proportional to 12,525.87, 18,786.78 and 3,759.24 is: 5,638.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,525.87 : 18,786.78 = 3,759.24 : x
  2. Step 2: Convert to fraction form
    12,525.87/18,786.78 = 3,759.24/x
  3. Step 3: Cross multiply
    12,525.87x = 18,786.78 × 3,759.24
  4. Step 4: Simplify right side
    12,525.87x = 70,623,996.05
  5. Step 5: Solve for x
    x = 70,623,996.05/12,525.87
  6. Step 6: Final answer
    x = 5,638.25

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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.