Home / 12,336.95-18,505.61-3,571.89

Finding the Fourth Proportional to 12,336.95, 18,505.61 and 3,571.89

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Solution

The fourth proportional to 12,336.95, 18,505.61 and 3,571.89 is: 5,357.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,336.95 : 18,505.61 = 3,571.89 : x
  2. Step 2: Convert to fraction form
    12,336.95/18,505.61 = 3,571.89/x
  3. Step 3: Cross multiply
    12,336.95x = 18,505.61 × 3,571.89
  4. Step 4: Simplify right side
    12,336.95x = 66,100,003.30
  5. Step 5: Solve for x
    x = 66,100,003.30/12,336.95
  6. Step 6: Final answer
    x = 5,357.89

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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.