Home / 11,281.20-16,922.60-3,490.64

Finding the Fourth Proportional to 11,281.20, 16,922.60 and 3,490.64

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Solution

The fourth proportional to 11,281.20, 16,922.60 and 3,490.64 is: 5,236.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,281.20 : 16,922.60 = 3,490.64 : x
  2. Step 2: Convert to fraction form
    11,281.20/16,922.60 = 3,490.64/x
  3. Step 3: Cross multiply
    11,281.20x = 16,922.60 × 3,490.64
  4. Step 4: Simplify right side
    11,281.20x = 59,070,704.46
  5. Step 5: Solve for x
    x = 59,070,704.46/11,281.20
  6. Step 6: Final answer
    x = 5,236.21

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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.