Home / 11,406.20-17,072.40-9,831.56

Finding the Fourth Proportional to 11,406.20, 17,072.40 and 9,831.56

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Solution

The fourth proportional to 11,406.20, 17,072.40 and 9,831.56 is: 14,715.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,406.20 : 17,072.40 = 9,831.56 : x
  2. Step 2: Convert to fraction form
    11,406.20/17,072.40 = 9,831.56/x
  3. Step 3: Cross multiply
    11,406.20x = 17,072.40 × 9,831.56
  4. Step 4: Simplify right side
    11,406.20x = 167,848,324.94
  5. Step 5: Solve for x
    x = 167,848,324.94/11,406.20
  6. Step 6: Final answer
    x = 14,715.53

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1.5x scale

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.