Home / 8,722.51-13,075.98-3,171.95

Finding the Fourth Proportional to 8,722.51, 13,075.98 and 3,171.95

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Solution

The fourth proportional to 8,722.51, 13,075.98 and 3,171.95 is: 4,755.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.51 : 13,075.98 = 3,171.95 : x
  2. Step 2: Convert to fraction form
    8,722.51/13,075.98 = 3,171.95/x
  3. Step 3: Cross multiply
    8,722.51x = 13,075.98 × 3,171.95
  4. Step 4: Simplify right side
    8,722.51x = 41,476,330.98
  5. Step 5: Solve for x
    x = 41,476,330.98/8,722.51
  6. Step 6: Final answer
    x = 4,755.09

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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.