Home / 12,930.37-19,395.98-3,571.09

Finding the Fourth Proportional to 12,930.37, 19,395.98 and 3,571.09

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Solution

The fourth proportional to 12,930.37, 19,395.98 and 3,571.09 is: 5,356.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,930.37 : 19,395.98 = 3,571.09 : x
  2. Step 2: Convert to fraction form
    12,930.37/19,395.98 = 3,571.09/x
  3. Step 3: Cross multiply
    12,930.37x = 19,395.98 × 3,571.09
  4. Step 4: Simplify right side
    12,930.37x = 69,264,790.22
  5. Step 5: Solve for x
    x = 69,264,790.22/12,930.37
  6. Step 6: Final answer
    x = 5,356.75

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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.