Home / 12,696.75-17,517.45-8,223.93

Finding the Fourth Proportional to 12,696.75, 17,517.45 and 8,223.93

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Solution

The fourth proportional to 12,696.75, 17,517.45 and 8,223.93 is: 11,346.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,696.75 : 17,517.45 = 8,223.93 : x
  2. Step 2: Convert to fraction form
    12,696.75/17,517.45 = 8,223.93/x
  3. Step 3: Cross multiply
    12,696.75x = 17,517.45 × 8,223.93
  4. Step 4: Simplify right side
    12,696.75x = 144,062,282.58
  5. Step 5: Solve for x
    x = 144,062,282.58/12,696.75
  6. Step 6: Final answer
    x = 11,346.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.