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Finding the Fourth Proportional to 11,229.60, 16,844.40 and 6,218.40

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Solution

The fourth proportional to 11,229.60, 16,844.40 and 6,218.40 is: 9,327.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,229.60 : 16,844.40 = 6,218.40 : x
  2. Step 2: Convert to fraction form
    11,229.60/16,844.40 = 6,218.40/x
  3. Step 3: Cross multiply
    11,229.60x = 16,844.40 × 6,218.40
  4. Step 4: Simplify right side
    11,229.60x = 104,745,216.96
  5. Step 5: Solve for x
    x = 104,745,216.96/11,229.60
  6. Step 6: Final answer
    x = 9,327.60

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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.