Home / 10,928.22-16,393.41-3,138.18

Finding the Fourth Proportional to 10,928.22, 16,393.41 and 3,138.18

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Solution

The fourth proportional to 10,928.22, 16,393.41 and 3,138.18 is: 4,707.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,928.22 : 16,393.41 = 3,138.18 : x
  2. Step 2: Convert to fraction form
    10,928.22/16,393.41 = 3,138.18/x
  3. Step 3: Cross multiply
    10,928.22x = 16,393.41 × 3,138.18
  4. Step 4: Simplify right side
    10,928.22x = 51,445,471.39
  5. Step 5: Solve for x
    x = 51,445,471.39/10,928.22
  6. Step 6: Final answer
    x = 4,707.58

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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.