Home / 12,650.67-18,976.23-3,885.66

Finding the Fourth Proportional to 12,650.67, 18,976.23 and 3,885.66

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Solution

The fourth proportional to 12,650.67, 18,976.23 and 3,885.66 is: 5,828.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,650.67 : 18,976.23 = 3,885.66 : x
  2. Step 2: Convert to fraction form
    12,650.67/18,976.23 = 3,885.66/x
  3. Step 3: Cross multiply
    12,650.67x = 18,976.23 × 3,885.66
  4. Step 4: Simplify right side
    12,650.67x = 73,735,177.86
  5. Step 5: Solve for x
    x = 73,735,177.86/12,650.67
  6. Step 6: Final answer
    x = 5,828.56

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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.