Home / 11,202.10-16,819.35-7,929.70

Finding the Fourth Proportional to 11,202.10, 16,819.35 and 7,929.70

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Solution

The fourth proportional to 11,202.10, 16,819.35 and 7,929.70 is: 11,906.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,202.10 : 16,819.35 = 7,929.70 : x
  2. Step 2: Convert to fraction form
    11,202.10/16,819.35 = 7,929.70/x
  3. Step 3: Cross multiply
    11,202.10x = 16,819.35 × 7,929.70
  4. Step 4: Simplify right side
    11,202.10x = 133,372,399.70
  5. Step 5: Solve for x
    x = 133,372,399.70/11,202.10
  6. Step 6: Final answer
    x = 11,906.02

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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.