Home / 12,079.44-18,118.35-5,503.86

Finding the Fourth Proportional to 12,079.44, 18,118.35 and 5,503.86

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Solution

The fourth proportional to 12,079.44, 18,118.35 and 5,503.86 is: 8,255.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.44 : 18,118.35 = 5,503.86 : x
  2. Step 2: Convert to fraction form
    12,079.44/18,118.35 = 5,503.86/x
  3. Step 3: Cross multiply
    12,079.44x = 18,118.35 × 5,503.86
  4. Step 4: Simplify right side
    12,079.44x = 99,720,861.83
  5. Step 5: Solve for x
    x = 99,720,861.83/12,079.44
  6. Step 6: Final answer
    x = 8,255.42

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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.