Home / 13,783.58-20,675.60-3,923.11

Finding the Fourth Proportional to 13,783.58, 20,675.60 and 3,923.11

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Solution

The fourth proportional to 13,783.58, 20,675.60 and 3,923.11 is: 5,884.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,783.58 : 20,675.60 = 3,923.11 : x
  2. Step 2: Convert to fraction form
    13,783.58/20,675.60 = 3,923.11/x
  3. Step 3: Cross multiply
    13,783.58x = 20,675.60 × 3,923.11
  4. Step 4: Simplify right side
    13,783.58x = 81,112,653.12
  5. Step 5: Solve for x
    x = 81,112,653.12/13,783.58
  6. Step 6: Final answer
    x = 5,884.73

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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.