Home / 18,743.31-28,119.89-6,736.68

Finding the Fourth Proportional to 18,743.31, 28,119.89 and 6,736.68

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Solution

The fourth proportional to 18,743.31, 28,119.89 and 6,736.68 is: 10,106.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,743.31 : 28,119.89 = 6,736.68 : x
  2. Step 2: Convert to fraction form
    18,743.31/28,119.89 = 6,736.68/x
  3. Step 3: Cross multiply
    18,743.31x = 28,119.89 × 6,736.68
  4. Step 4: Simplify right side
    18,743.31x = 189,434,700.57
  5. Step 5: Solve for x
    x = 189,434,700.57/18,743.31
  6. Step 6: Final answer
    x = 10,106.79

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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.