Home / 10,831.68-16,245.12-3,040.32

Finding the Fourth Proportional to 10,831.68, 16,245.12 and 3,040.32

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Solution

The fourth proportional to 10,831.68, 16,245.12 and 3,040.32 is: 4,559.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,831.68 : 16,245.12 = 3,040.32 : x
  2. Step 2: Convert to fraction form
    10,831.68/16,245.12 = 3,040.32/x
  3. Step 3: Cross multiply
    10,831.68x = 16,245.12 × 3,040.32
  4. Step 4: Simplify right side
    10,831.68x = 49,390,363.24
  5. Step 5: Solve for x
    x = 49,390,363.24/10,831.68
  6. Step 6: Final answer
    x = 4,559.81

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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.