Home / 11,220.32-16,823.12-5,380.24

Finding the Fourth Proportional to 11,220.32, 16,823.12 and 5,380.24

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Solution

The fourth proportional to 11,220.32, 16,823.12 and 5,380.24 is: 8,066.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.32 : 16,823.12 = 5,380.24 : x
  2. Step 2: Convert to fraction form
    11,220.32/16,823.12 = 5,380.24/x
  3. Step 3: Cross multiply
    11,220.32x = 16,823.12 × 5,380.24
  4. Step 4: Simplify right side
    11,220.32x = 90,512,423.15
  5. Step 5: Solve for x
    x = 90,512,423.15/11,220.32
  6. Step 6: Final answer
    x = 8,066.83

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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.