Home / 12,106.33-18,163.14-4,315.75

Finding the Fourth Proportional to 12,106.33, 18,163.14 and 4,315.75

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Solution

The fourth proportional to 12,106.33, 18,163.14 and 4,315.75 is: 6,474.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,106.33 : 18,163.14 = 4,315.75 : x
  2. Step 2: Convert to fraction form
    12,106.33/18,163.14 = 4,315.75/x
  3. Step 3: Cross multiply
    12,106.33x = 18,163.14 × 4,315.75
  4. Step 4: Simplify right side
    12,106.33x = 78,387,571.46
  5. Step 5: Solve for x
    x = 78,387,571.46/12,106.33
  6. Step 6: Final answer
    x = 6,474.92

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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.