Home / 11,720.88-17,581.28-4,795.38

Finding the Fourth Proportional to 11,720.88, 17,581.28 and 4,795.38

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Solution

The fourth proportional to 11,720.88, 17,581.28 and 4,795.38 is: 7,193.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,720.88 : 17,581.28 = 4,795.38 : x
  2. Step 2: Convert to fraction form
    11,720.88/17,581.28 = 4,795.38/x
  3. Step 3: Cross multiply
    11,720.88x = 17,581.28 × 4,795.38
  4. Step 4: Simplify right side
    11,720.88x = 84,308,918.49
  5. Step 5: Solve for x
    x = 84,308,918.49/11,720.88
  6. Step 6: Final answer
    x = 7,193.05

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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.