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Finding the Fourth Proportional to 12,679.76, 19,022.52 and 6,836.24

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Solution

The fourth proportional to 12,679.76, 19,022.52 and 6,836.24 is: 10,255.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,679.76 : 19,022.52 = 6,836.24 : x
  2. Step 2: Convert to fraction form
    12,679.76/19,022.52 = 6,836.24/x
  3. Step 3: Cross multiply
    12,679.76x = 19,022.52 × 6,836.24
  4. Step 4: Simplify right side
    12,679.76x = 130,042,512.12
  5. Step 5: Solve for x
    x = 130,042,512.12/12,679.76
  6. Step 6: Final answer
    x = 10,255.91

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1.5x scale

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.