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Finding the Fourth Proportional to 8,039.44, 11,987.87 and 7,503.22

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Solution

The fourth proportional to 8,039.44, 11,987.87 and 7,503.22 is: 11,188.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,039.44 : 11,987.87 = 7,503.22 : x
  2. Step 2: Convert to fraction form
    8,039.44/11,987.87 = 7,503.22/x
  3. Step 3: Cross multiply
    8,039.44x = 11,987.87 × 7,503.22
  4. Step 4: Simplify right side
    8,039.44x = 89,947,625.94
  5. Step 5: Solve for x
    x = 89,947,625.94/8,039.44
  6. Step 6: Final answer
    x = 11,188.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.