Home / 12,446.28-18,665.55-4,124.43

Finding the Fourth Proportional to 12,446.28, 18,665.55 and 4,124.43

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Solution

The fourth proportional to 12,446.28, 18,665.55 and 4,124.43 is: 6,185.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,446.28 : 18,665.55 = 4,124.43 : x
  2. Step 2: Convert to fraction form
    12,446.28/18,665.55 = 4,124.43/x
  3. Step 3: Cross multiply
    12,446.28x = 18,665.55 × 4,124.43
  4. Step 4: Simplify right side
    12,446.28x = 76,984,754.39
  5. Step 5: Solve for x
    x = 76,984,754.39/12,446.28
  6. Step 6: Final answer
    x = 6,185.36

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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.