Home / 11,234.12-16,856.04-5,390.80

Finding the Fourth Proportional to 11,234.12, 16,856.04 and 5,390.80

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Solution

The fourth proportional to 11,234.12, 16,856.04 and 5,390.80 is: 8,088.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,234.12 : 16,856.04 = 5,390.80 : x
  2. Step 2: Convert to fraction form
    11,234.12/16,856.04 = 5,390.80/x
  3. Step 3: Cross multiply
    11,234.12x = 16,856.04 × 5,390.80
  4. Step 4: Simplify right side
    11,234.12x = 90,867,540.43
  5. Step 5: Solve for x
    x = 90,867,540.43/11,234.12
  6. Step 6: Final answer
    x = 8,088.53

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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.