Home / 11,228.88-16,845.18-4,211.40

Finding the Fourth Proportional to 11,228.88, 16,845.18 and 4,211.40

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Solution

The fourth proportional to 11,228.88, 16,845.18 and 4,211.40 is: 6,317.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,228.88 : 16,845.18 = 4,211.40 : x
  2. Step 2: Convert to fraction form
    11,228.88/16,845.18 = 4,211.40/x
  3. Step 3: Cross multiply
    11,228.88x = 16,845.18 × 4,211.40
  4. Step 4: Simplify right side
    11,228.88x = 70,941,791.05
  5. Step 5: Solve for x
    x = 70,941,791.05/11,228.88
  6. Step 6: Final answer
    x = 6,317.80

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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.