Home / 8,716.97-13,075.36-2,143.22

Finding the Fourth Proportional to 8,716.97, 13,075.36 and 2,143.22

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Solution

The fourth proportional to 8,716.97, 13,075.36 and 2,143.22 is: 3,214.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.97 : 13,075.36 = 2,143.22 : x
  2. Step 2: Convert to fraction form
    8,716.97/13,075.36 = 2,143.22/x
  3. Step 3: Cross multiply
    8,716.97x = 13,075.36 × 2,143.22
  4. Step 4: Simplify right side
    8,716.97x = 28,023,302.32
  5. Step 5: Solve for x
    x = 28,023,302.32/8,716.97
  6. Step 6: Final answer
    x = 3,214.80

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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.