Home / 18,834.72-28,241.14-7,141.56

Finding the Fourth Proportional to 18,834.72, 28,241.14 and 7,141.56

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Solution

The fourth proportional to 18,834.72, 28,241.14 and 7,141.56 is: 10,708.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,834.72 : 28,241.14 = 7,141.56 : x
  2. Step 2: Convert to fraction form
    18,834.72/28,241.14 = 7,141.56/x
  3. Step 3: Cross multiply
    18,834.72x = 28,241.14 × 7,141.56
  4. Step 4: Simplify right side
    18,834.72x = 201,685,795.78
  5. Step 5: Solve for x
    x = 201,685,795.78/18,834.72
  6. Step 6: Final answer
    x = 10,708.19

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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.