Home / 11,171.79-16,759.85-4,245.75

Finding the Fourth Proportional to 11,171.79, 16,759.85 and 4,245.75

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Solution

The fourth proportional to 11,171.79, 16,759.85 and 4,245.75 is: 6,369.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,171.79 : 16,759.85 = 4,245.75 : x
  2. Step 2: Convert to fraction form
    11,171.79/16,759.85 = 4,245.75/x
  3. Step 3: Cross multiply
    11,171.79x = 16,759.85 × 4,245.75
  4. Step 4: Simplify right side
    11,171.79x = 71,158,111.91
  5. Step 5: Solve for x
    x = 71,158,111.91/11,171.79
  6. Step 6: Final answer
    x = 6,369.45

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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.