Home / 9,021.84-13,539.60-3,831.36

Finding the Fourth Proportional to 9,021.84, 13,539.60 and 3,831.36

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Solution

The fourth proportional to 9,021.84, 13,539.60 and 3,831.36 is: 5,749.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,021.84 : 13,539.60 = 3,831.36 : x
  2. Step 2: Convert to fraction form
    9,021.84/13,539.60 = 3,831.36/x
  3. Step 3: Cross multiply
    9,021.84x = 13,539.60 × 3,831.36
  4. Step 4: Simplify right side
    9,021.84x = 51,875,081.86
  5. Step 5: Solve for x
    x = 51,875,081.86/9,021.84
  6. Step 6: Final answer
    x = 5,749.94

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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.