Home / 12,677.38-18,992.75-6,441.86

Finding the Fourth Proportional to 12,677.38, 18,992.75 and 6,441.86

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Solution

The fourth proportional to 12,677.38, 18,992.75 and 6,441.86 is: 9,650.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,677.38 : 18,992.75 = 6,441.86 : x
  2. Step 2: Convert to fraction form
    12,677.38/18,992.75 = 6,441.86/x
  3. Step 3: Cross multiply
    12,677.38x = 18,992.75 × 6,441.86
  4. Step 4: Simplify right side
    12,677.38x = 122,348,651.79
  5. Step 5: Solve for x
    x = 122,348,651.79/12,677.38
  6. Step 6: Final answer
    x = 9,650.94

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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.