Home / 18,091.76-24,958.28-11,720.48

Finding the Fourth Proportional to 18,091.76, 24,958.28 and 11,720.48

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Solution

The fourth proportional to 18,091.76, 24,958.28 and 11,720.48 is: 16,168.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,091.76 : 24,958.28 = 11,720.48 : x
  2. Step 2: Convert to fraction form
    18,091.76/24,958.28 = 11,720.48/x
  3. Step 3: Cross multiply
    18,091.76x = 24,958.28 × 11,720.48
  4. Step 4: Simplify right side
    18,091.76x = 292,523,000.55
  5. Step 5: Solve for x
    x = 292,523,000.55/18,091.76
  6. Step 6: Final answer
    x = 16,168.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.