Home / 18,982.13-28,474.61-7,295.45

Finding the Fourth Proportional to 18,982.13, 28,474.61 and 7,295.45

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Solution

The fourth proportional to 18,982.13, 28,474.61 and 7,295.45 is: 10,943.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,982.13 : 28,474.61 = 7,295.45 : x
  2. Step 2: Convert to fraction form
    18,982.13/28,474.61 = 7,295.45/x
  3. Step 3: Cross multiply
    18,982.13x = 28,474.61 × 7,295.45
  4. Step 4: Simplify right side
    18,982.13x = 207,734,914.67
  5. Step 5: Solve for x
    x = 207,734,914.67/18,982.13
  6. Step 6: Final answer
    x = 10,943.71

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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.