Home / 12,089.66-18,140.06-5,517.86

Finding the Fourth Proportional to 12,089.66, 18,140.06 and 5,517.86

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Solution

The fourth proportional to 12,089.66, 18,140.06 and 5,517.86 is: 8,279.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,089.66 : 18,140.06 = 5,517.86 : x
  2. Step 2: Convert to fraction form
    12,089.66/18,140.06 = 5,517.86/x
  3. Step 3: Cross multiply
    12,089.66x = 18,140.06 × 5,517.86
  4. Step 4: Simplify right side
    12,089.66x = 100,094,234.57
  5. Step 5: Solve for x
    x = 100,094,234.57/12,089.66
  6. Step 6: Final answer
    x = 8,279.33

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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.