Home / 11,831.72-16,328.58-6,863.72

Finding the Fourth Proportional to 11,831.72, 16,328.58 and 6,863.72

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Solution

The fourth proportional to 11,831.72, 16,328.58 and 6,863.72 is: 9,472.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,831.72 : 16,328.58 = 6,863.72 : x
  2. Step 2: Convert to fraction form
    11,831.72/16,328.58 = 6,863.72/x
  3. Step 3: Cross multiply
    11,831.72x = 16,328.58 × 6,863.72
  4. Step 4: Simplify right side
    11,831.72x = 112,074,801.12
  5. Step 5: Solve for x
    x = 112,074,801.12/11,831.72
  6. Step 6: Final answer
    x = 9,472.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.