Home / 12,288.86-16,958.61-6,699.86

Finding the Fourth Proportional to 12,288.86, 16,958.61 and 6,699.86

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Solution

The fourth proportional to 12,288.86, 16,958.61 and 6,699.86 is: 9,245.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,288.86 : 16,958.61 = 6,699.86 : x
  2. Step 2: Convert to fraction form
    12,288.86/16,958.61 = 6,699.86/x
  3. Step 3: Cross multiply
    12,288.86x = 16,958.61 × 6,699.86
  4. Step 4: Simplify right side
    12,288.86x = 113,620,228.00
  5. Step 5: Solve for x
    x = 113,620,228.00/12,288.86
  6. Step 6: Final answer
    x = 9,245.79

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.