Home / 11,955.15-17,932.79-6,115.86

Finding the Fourth Proportional to 11,955.15, 17,932.79 and 6,115.86

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Solution

The fourth proportional to 11,955.15, 17,932.79 and 6,115.86 is: 9,173.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,955.15 : 17,932.79 = 6,115.86 : x
  2. Step 2: Convert to fraction form
    11,955.15/17,932.79 = 6,115.86/x
  3. Step 3: Cross multiply
    11,955.15x = 17,932.79 × 6,115.86
  4. Step 4: Simplify right side
    11,955.15x = 109,674,448.34
  5. Step 5: Solve for x
    x = 109,674,448.34/11,955.15
  6. Step 6: Final answer
    x = 9,173.82

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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.