Home / 12,679.70-19,022.66-4,359.84

Finding the Fourth Proportional to 12,679.70, 19,022.66 and 4,359.84

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Solution

The fourth proportional to 12,679.70, 19,022.66 and 4,359.84 is: 6,540.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,679.70 : 19,022.66 = 4,359.84 : x
  2. Step 2: Convert to fraction form
    12,679.70/19,022.66 = 4,359.84/x
  3. Step 3: Cross multiply
    12,679.70x = 19,022.66 × 4,359.84
  4. Step 4: Simplify right side
    12,679.70x = 82,935,753.97
  5. Step 5: Solve for x
    x = 82,935,753.97/12,679.70
  6. Step 6: Final answer
    x = 6,540.83

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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.