Home / 11,720.94-17,581.40-5,876.18

Finding the Fourth Proportional to 11,720.94, 17,581.40 and 5,876.18

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Solution

The fourth proportional to 11,720.94, 17,581.40 and 5,876.18 is: 8,814.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.94 : 17,581.40 = 5,876.18 : x
  2. Step 2: Convert to fraction form
    11,720.94/17,581.40 = 5,876.18/x
  3. Step 3: Cross multiply
    11,720.94x = 17,581.40 × 5,876.18
  4. Step 4: Simplify right side
    11,720.94x = 103,311,353.76
  5. Step 5: Solve for x
    x = 103,311,353.76/11,720.94
  6. Step 6: Final answer
    x = 8,814.25

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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.