Home / 12,525.28-18,786.48-3,760.18

Finding the Fourth Proportional to 12,525.28, 18,786.48 and 3,760.18

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Solution

The fourth proportional to 12,525.28, 18,786.48 and 3,760.18 is: 5,639.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,525.28 : 18,786.48 = 3,760.18 : x
  2. Step 2: Convert to fraction form
    12,525.28/18,786.48 = 3,760.18/x
  3. Step 3: Cross multiply
    12,525.28x = 18,786.48 × 3,760.18
  4. Step 4: Simplify right side
    12,525.28x = 70,640,546.37
  5. Step 5: Solve for x
    x = 70,640,546.37/12,525.28
  6. Step 6: Final answer
    x = 5,639.84

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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.