Home / 12,650.73-18,975.41-3,885.72

Finding the Fourth Proportional to 12,650.73, 18,975.41 and 3,885.72

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Solution

The fourth proportional to 12,650.73, 18,975.41 and 3,885.72 is: 5,828.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,650.73 : 18,975.41 = 3,885.72 : x
  2. Step 2: Convert to fraction form
    12,650.73/18,975.41 = 3,885.72/x
  3. Step 3: Cross multiply
    12,650.73x = 18,975.41 × 3,885.72
  4. Step 4: Simplify right side
    12,650.73x = 73,733,182.72
  5. Step 5: Solve for x
    x = 73,733,182.72/12,650.73
  6. Step 6: Final answer
    x = 5,828.37

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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.