Home / 9,831.94-14,750.79-3,986.98

Finding the Fourth Proportional to 9,831.94, 14,750.79 and 3,986.98

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Solution

The fourth proportional to 9,831.94, 14,750.79 and 3,986.98 is: 5,981.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,831.94 : 14,750.79 = 3,986.98 : x
  2. Step 2: Convert to fraction form
    9,831.94/14,750.79 = 3,986.98/x
  3. Step 3: Cross multiply
    9,831.94x = 14,750.79 × 3,986.98
  4. Step 4: Simplify right side
    9,831.94x = 58,811,104.71
  5. Step 5: Solve for x
    x = 58,811,104.71/9,831.94
  6. Step 6: Final answer
    x = 5,981.64

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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.