Home / 13,543.29-20,265.68-11,181.33

Finding the Fourth Proportional to 13,543.29, 20,265.68 and 11,181.33

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Solution

The fourth proportional to 13,543.29, 20,265.68 and 11,181.33 is: 16,731.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,543.29 : 20,265.68 = 11,181.33 : x
  2. Step 2: Convert to fraction form
    13,543.29/20,265.68 = 11,181.33/x
  3. Step 3: Cross multiply
    13,543.29x = 20,265.68 × 11,181.33
  4. Step 4: Simplify right side
    13,543.29x = 226,597,199.85
  5. Step 5: Solve for x
    x = 226,597,199.85/13,543.29
  6. Step 6: Final answer
    x = 16,731.33

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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.