Home / 11,150.64-16,725.87-2,830.55

Finding the Fourth Proportional to 11,150.64, 16,725.87 and 2,830.55

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Solution

The fourth proportional to 11,150.64, 16,725.87 and 2,830.55 is: 4,245.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,150.64 : 16,725.87 = 2,830.55 : x
  2. Step 2: Convert to fraction form
    11,150.64/16,725.87 = 2,830.55/x
  3. Step 3: Cross multiply
    11,150.64x = 16,725.87 × 2,830.55
  4. Step 4: Simplify right side
    11,150.64x = 47,343,327.70
  5. Step 5: Solve for x
    x = 47,343,327.70/11,150.64
  6. Step 6: Final answer
    x = 4,245.79

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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.