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Finding the Fourth Proportional to 12,907.66, 17,696.57 and 12,674.38

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Solution

The fourth proportional to 12,907.66, 17,696.57 and 12,674.38 is: 17,376.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,907.66 : 17,696.57 = 12,674.38 : x
  2. Step 2: Convert to fraction form
    12,907.66/17,696.57 = 12,674.38/x
  3. Step 3: Cross multiply
    12,907.66x = 17,696.57 × 12,674.38
  4. Step 4: Simplify right side
    12,907.66x = 224,293,052.88
  5. Step 5: Solve for x
    x = 224,293,052.88/12,907.66
  6. Step 6: Final answer
    x = 17,376.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.