Home / 19,186.82-28,761.76-9,831.26

Finding the Fourth Proportional to 19,186.82, 28,761.76 and 9,831.26

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Solution

The fourth proportional to 19,186.82, 28,761.76 and 9,831.26 is: 14,737.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,186.82 : 28,761.76 = 9,831.26 : x
  2. Step 2: Convert to fraction form
    19,186.82/28,761.76 = 9,831.26/x
  3. Step 3: Cross multiply
    19,186.82x = 28,761.76 × 9,831.26
  4. Step 4: Simplify right side
    19,186.82x = 282,764,340.62
  5. Step 5: Solve for x
    x = 282,764,340.62/19,186.82
  6. Step 6: Final answer
    x = 14,737.43

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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.