Home / 11,987.84-17,969.60-5,738.69

Finding the Fourth Proportional to 11,987.84, 17,969.60 and 5,738.69

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Solution

The fourth proportional to 11,987.84, 17,969.60 and 5,738.69 is: 8,602.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,987.84 : 17,969.60 = 5,738.69 : x
  2. Step 2: Convert to fraction form
    11,987.84/17,969.60 = 5,738.69/x
  3. Step 3: Cross multiply
    11,987.84x = 17,969.60 × 5,738.69
  4. Step 4: Simplify right side
    11,987.84x = 103,122,023.09
  5. Step 5: Solve for x
    x = 103,122,023.09/11,987.84
  6. Step 6: Final answer
    x = 8,602.22

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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.