Home / 13,853.96-20,780.94-3,465.72

Finding the Fourth Proportional to 13,853.96, 20,780.94 and 3,465.72

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Solution

The fourth proportional to 13,853.96, 20,780.94 and 3,465.72 is: 5,198.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,853.96 : 20,780.94 = 3,465.72 : x
  2. Step 2: Convert to fraction form
    13,853.96/20,780.94 = 3,465.72/x
  3. Step 3: Cross multiply
    13,853.96x = 20,780.94 × 3,465.72
  4. Step 4: Simplify right side
    13,853.96x = 72,020,919.38
  5. Step 5: Solve for x
    x = 72,020,919.38/13,853.96
  6. Step 6: Final answer
    x = 5,198.58

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Similar ratio
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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.