Home / 10,831.12-16,247.20-3,040.72

Finding the Fourth Proportional to 10,831.12, 16,247.20 and 3,040.72

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Solution

The fourth proportional to 10,831.12, 16,247.20 and 3,040.72 is: 4,561.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,831.12 : 16,247.20 = 3,040.72 : x
  2. Step 2: Convert to fraction form
    10,831.12/16,247.20 = 3,040.72/x
  3. Step 3: Cross multiply
    10,831.12x = 16,247.20 × 3,040.72
  4. Step 4: Simplify right side
    10,831.12x = 49,403,185.98
  5. Step 5: Solve for x
    x = 49,403,185.98/10,831.12
  6. Step 6: Final answer
    x = 4,561.23

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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.