Home / 11,202.40-16,789.20-6,815.20

Finding the Fourth Proportional to 11,202.40, 16,789.20 and 6,815.20

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Solution

The fourth proportional to 11,202.40, 16,789.20 and 6,815.20 is: 10,214.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,202.40 : 16,789.20 = 6,815.20 : x
  2. Step 2: Convert to fraction form
    11,202.40/16,789.20 = 6,815.20/x
  3. Step 3: Cross multiply
    11,202.40x = 16,789.20 × 6,815.20
  4. Step 4: Simplify right side
    11,202.40x = 114,421,755.84
  5. Step 5: Solve for x
    x = 114,421,755.84/11,202.40
  6. Step 6: Final answer
    x = 10,214.04

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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.