Home / 11,219.86-16,831.41-3,427.66

Finding the Fourth Proportional to 11,219.86, 16,831.41 and 3,427.66

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Solution

The fourth proportional to 11,219.86, 16,831.41 and 3,427.66 is: 5,141.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,219.86 : 16,831.41 = 3,427.66 : x
  2. Step 2: Convert to fraction form
    11,219.86/16,831.41 = 3,427.66/x
  3. Step 3: Cross multiply
    11,219.86x = 16,831.41 × 3,427.66
  4. Step 4: Simplify right side
    11,219.86x = 57,692,308.72
  5. Step 5: Solve for x
    x = 57,692,308.72/11,219.86
  6. Step 6: Final answer
    x = 5,141.98

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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.