Home / 8,719.47-13,075.93-3,171.44

Finding the Fourth Proportional to 8,719.47, 13,075.93 and 3,171.44

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Solution

The fourth proportional to 8,719.47, 13,075.93 and 3,171.44 is: 4,755.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,719.47 : 13,075.93 = 3,171.44 : x
  2. Step 2: Convert to fraction form
    8,719.47/13,075.93 = 3,171.44/x
  3. Step 3: Cross multiply
    8,719.47x = 13,075.93 × 3,171.44
  4. Step 4: Simplify right side
    8,719.47x = 41,469,564.09
  5. Step 5: Solve for x
    x = 41,469,564.09/8,719.47
  6. Step 6: Final answer
    x = 4,755.97

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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.