Home / 11,205.44-15,464.40-6,489.80

Finding the Fourth Proportional to 11,205.44, 15,464.40 and 6,489.80

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Solution

The fourth proportional to 11,205.44, 15,464.40 and 6,489.80 is: 8,956.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,205.44 : 15,464.40 = 6,489.80 : x
  2. Step 2: Convert to fraction form
    11,205.44/15,464.40 = 6,489.80/x
  3. Step 3: Cross multiply
    11,205.44x = 15,464.40 × 6,489.80
  4. Step 4: Simplify right side
    11,205.44x = 100,360,863.12
  5. Step 5: Solve for x
    x = 100,360,863.12/11,205.44
  6. Step 6: Final answer
    x = 8,956.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.