Home / 11,138.21-16,707.31-4,477.74

Finding the Fourth Proportional to 11,138.21, 16,707.31 and 4,477.74

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Solution

The fourth proportional to 11,138.21, 16,707.31 and 4,477.74 is: 6,716.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,138.21 : 16,707.31 = 4,477.74 : x
  2. Step 2: Convert to fraction form
    11,138.21/16,707.31 = 4,477.74/x
  3. Step 3: Cross multiply
    11,138.21x = 16,707.31 × 4,477.74
  4. Step 4: Simplify right side
    11,138.21x = 74,810,990.28
  5. Step 5: Solve for x
    x = 74,810,990.28/11,138.21
  6. Step 6: Final answer
    x = 6,716.61

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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.