Home / 8,716.19-13,074.29-2,142.36

Finding the Fourth Proportional to 8,716.19, 13,074.29 and 2,142.36

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Solution

The fourth proportional to 8,716.19, 13,074.29 and 2,142.36 is: 3,213.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,716.19 : 13,074.29 = 2,142.36 : x
  2. Step 2: Convert to fraction form
    8,716.19/13,074.29 = 2,142.36/x
  3. Step 3: Cross multiply
    8,716.19x = 13,074.29 × 2,142.36
  4. Step 4: Simplify right side
    8,716.19x = 28,009,825.21
  5. Step 5: Solve for x
    x = 28,009,825.21/8,716.19
  6. Step 6: Final answer
    x = 3,213.54

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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.