Home / 11,195.52-15,449.60-7,658.64

Finding the Fourth Proportional to 11,195.52, 15,449.60 and 7,658.64

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Solution

The fourth proportional to 11,195.52, 15,449.60 and 7,658.64 is: 10,568.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,195.52 : 15,449.60 = 7,658.64 : x
  2. Step 2: Convert to fraction form
    11,195.52/15,449.60 = 7,658.64/x
  3. Step 3: Cross multiply
    11,195.52x = 15,449.60 × 7,658.64
  4. Step 4: Simplify right side
    11,195.52x = 118,322,924.54
  5. Step 5: Solve for x
    x = 118,322,924.54/11,195.52
  6. Step 6: Final answer
    x = 10,568.77

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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.