Home / 13,952.32-20,928.65-4,091.80

Finding the Fourth Proportional to 13,952.32, 20,928.65 and 4,091.80

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Solution

The fourth proportional to 13,952.32, 20,928.65 and 4,091.80 is: 6,137.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,952.32 : 20,928.65 = 4,091.80 : x
  2. Step 2: Convert to fraction form
    13,952.32/20,928.65 = 4,091.80/x
  3. Step 3: Cross multiply
    13,952.32x = 20,928.65 × 4,091.80
  4. Step 4: Simplify right side
    13,952.32x = 85,635,850.07
  5. Step 5: Solve for x
    x = 85,635,850.07/13,952.32
  6. Step 6: Final answer
    x = 6,137.75

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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.