Home / 12,571.37-18,856.74-3,211.46

Finding the Fourth Proportional to 12,571.37, 18,856.74 and 3,211.46

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Solution

The fourth proportional to 12,571.37, 18,856.74 and 3,211.46 is: 4,817.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,571.37 : 18,856.74 = 3,211.46 : x
  2. Step 2: Convert to fraction form
    12,571.37/18,856.74 = 3,211.46/x
  3. Step 3: Cross multiply
    12,571.37x = 18,856.74 × 3,211.46
  4. Step 4: Simplify right side
    12,571.37x = 60,557,666.24
  5. Step 5: Solve for x
    x = 60,557,666.24/12,571.37
  6. Step 6: Final answer
    x = 4,817.11

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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.