Home / 11,286.40-16,902.24-5,725.12

Finding the Fourth Proportional to 11,286.40, 16,902.24 and 5,725.12

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Solution

The fourth proportional to 11,286.40, 16,902.24 and 5,725.12 is: 8,573.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,286.40 : 16,902.24 = 5,725.12 : x
  2. Step 2: Convert to fraction form
    11,286.40/16,902.24 = 5,725.12/x
  3. Step 3: Cross multiply
    11,286.40x = 16,902.24 × 5,725.12
  4. Step 4: Simplify right side
    11,286.40x = 96,767,352.27
  5. Step 5: Solve for x
    x = 96,767,352.27/11,286.40
  6. Step 6: Final answer
    x = 8,573.80

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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.