Home / 9,831.87-14,743.76-3,986.91

Finding the Fourth Proportional to 9,831.87, 14,743.76 and 3,986.91

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Solution

The fourth proportional to 9,831.87, 14,743.76 and 3,986.91 is: 5,978.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,831.87 : 14,743.76 = 3,986.91 : x
  2. Step 2: Convert to fraction form
    9,831.87/14,743.76 = 3,986.91/x
  3. Step 3: Cross multiply
    9,831.87x = 14,743.76 × 3,986.91
  4. Step 4: Simplify right side
    9,831.87x = 58,782,024.25
  5. Step 5: Solve for x
    x = 58,782,024.25/9,831.87
  6. Step 6: Final answer
    x = 5,978.72

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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.