Home / 13,836.96-20,751.39-5,514.21

Finding the Fourth Proportional to 13,836.96, 20,751.39 and 5,514.21

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Solution

The fourth proportional to 13,836.96, 20,751.39 and 5,514.21 is: 8,269.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,836.96 : 20,751.39 = 5,514.21 : x
  2. Step 2: Convert to fraction form
    13,836.96/20,751.39 = 5,514.21/x
  3. Step 3: Cross multiply
    13,836.96x = 20,751.39 × 5,514.21
  4. Step 4: Simplify right side
    13,836.96x = 114,427,522.25
  5. Step 5: Solve for x
    x = 114,427,522.25/13,836.96
  6. Step 6: Final answer
    x = 8,269.70

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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.