Home / 12,153.80-18,230.70-3,836.37

Finding the Fourth Proportional to 12,153.80, 18,230.70 and 3,836.37

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Solution

The fourth proportional to 12,153.80, 18,230.70 and 3,836.37 is: 5,754.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,153.80 : 18,230.70 = 3,836.37 : x
  2. Step 2: Convert to fraction form
    12,153.80/18,230.70 = 3,836.37/x
  3. Step 3: Cross multiply
    12,153.80x = 18,230.70 × 3,836.37
  4. Step 4: Simplify right side
    12,153.80x = 69,939,710.56
  5. Step 5: Solve for x
    x = 69,939,710.56/12,153.80
  6. Step 6: Final answer
    x = 5,754.56

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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.