Home / 11,810.84-17,720.76-4,418.60

Finding the Fourth Proportional to 11,810.84, 17,720.76 and 4,418.60

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Solution

The fourth proportional to 11,810.84, 17,720.76 and 4,418.60 is: 6,629.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,810.84 : 17,720.76 = 4,418.60 : x
  2. Step 2: Convert to fraction form
    11,810.84/17,720.76 = 4,418.60/x
  3. Step 3: Cross multiply
    11,810.84x = 17,720.76 × 4,418.60
  4. Step 4: Simplify right side
    11,810.84x = 78,300,950.14
  5. Step 5: Solve for x
    x = 78,300,950.14/11,810.84
  6. Step 6: Final answer
    x = 6,629.58

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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.