Home / 11,720.92-17,586.78-5,881.72

Finding the Fourth Proportional to 11,720.92, 17,586.78 and 5,881.72

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Solution

The fourth proportional to 11,720.92, 17,586.78 and 5,881.72 is: 8,825.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.92 : 17,586.78 = 5,881.72 : x
  2. Step 2: Convert to fraction form
    11,720.92/17,586.78 = 5,881.72/x
  3. Step 3: Cross multiply
    11,720.92x = 17,586.78 × 5,881.72
  4. Step 4: Simplify right side
    11,720.92x = 103,440,515.66
  5. Step 5: Solve for x
    x = 103,440,515.66/11,720.92
  6. Step 6: Final answer
    x = 8,825.29

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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.