Home / 11,961.81-17,939.61-4,564.08

Finding the Fourth Proportional to 11,961.81, 17,939.61 and 4,564.08

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Solution

The fourth proportional to 11,961.81, 17,939.61 and 4,564.08 is: 6,844.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,961.81 : 17,939.61 = 4,564.08 : x
  2. Step 2: Convert to fraction form
    11,961.81/17,939.61 = 4,564.08/x
  3. Step 3: Cross multiply
    11,961.81x = 17,939.61 × 4,564.08
  4. Step 4: Simplify right side
    11,961.81x = 81,877,815.21
  5. Step 5: Solve for x
    x = 81,877,815.21/11,961.81
  6. Step 6: Final answer
    x = 6,844.94

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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.