Home / 12,696.57-19,041.16-3,811.51

Finding the Fourth Proportional to 12,696.57, 19,041.16 and 3,811.51

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Solution

The fourth proportional to 12,696.57, 19,041.16 and 3,811.51 is: 5,716.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,696.57 : 19,041.16 = 3,811.51 : x
  2. Step 2: Convert to fraction form
    12,696.57/19,041.16 = 3,811.51/x
  3. Step 3: Cross multiply
    12,696.57x = 19,041.16 × 3,811.51
  4. Step 4: Simplify right side
    12,696.57x = 72,575,571.75
  5. Step 5: Solve for x
    x = 72,575,571.75/12,696.57
  6. Step 6: Final answer
    x = 5,716.16

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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.