Home / 8,716.07-13,075.32-3,168.78

Finding the Fourth Proportional to 8,716.07, 13,075.32 and 3,168.78

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Solution

The fourth proportional to 8,716.07, 13,075.32 and 3,168.78 is: 4,753.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.07 : 13,075.32 = 3,168.78 : x
  2. Step 2: Convert to fraction form
    8,716.07/13,075.32 = 3,168.78/x
  3. Step 3: Cross multiply
    8,716.07x = 13,075.32 × 3,168.78
  4. Step 4: Simplify right side
    8,716.07x = 41,432,812.51
  5. Step 5: Solve for x
    x = 41,432,812.51/8,716.07
  6. Step 6: Final answer
    x = 4,753.61

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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.