Home / 9,831.31-14,746.87-3,986.53

Finding the Fourth Proportional to 9,831.31, 14,746.87 and 3,986.53

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Solution

The fourth proportional to 9,831.31, 14,746.87 and 3,986.53 is: 5,979.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,831.31 : 14,746.87 = 3,986.53 : x
  2. Step 2: Convert to fraction form
    9,831.31/14,746.87 = 3,986.53/x
  3. Step 3: Cross multiply
    9,831.31x = 14,746.87 × 3,986.53
  4. Step 4: Simplify right side
    9,831.31x = 58,788,745.99
  5. Step 5: Solve for x
    x = 58,788,745.99/9,831.31
  6. Step 6: Final answer
    x = 5,979.75

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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.