Home / 13,903.38-20,873.34-8,291.34

Finding the Fourth Proportional to 13,903.38, 20,873.34 and 8,291.34

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Solution

The fourth proportional to 13,903.38, 20,873.34 and 8,291.34 is: 12,447.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.38 : 20,873.34 = 8,291.34 : x
  2. Step 2: Convert to fraction form
    13,903.38/20,873.34 = 8,291.34/x
  3. Step 3: Cross multiply
    13,903.38x = 20,873.34 × 8,291.34
  4. Step 4: Simplify right side
    13,903.38x = 173,067,958.88
  5. Step 5: Solve for x
    x = 173,067,958.88/13,903.38
  6. Step 6: Final answer
    x = 12,447.91

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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.