Home / 11,102.88-16,653.90-3,311.49

Finding the Fourth Proportional to 11,102.88, 16,653.90 and 3,311.49

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Solution

The fourth proportional to 11,102.88, 16,653.90 and 3,311.49 is: 4,967.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,102.88 : 16,653.90 = 3,311.49 : x
  2. Step 2: Convert to fraction form
    11,102.88/16,653.90 = 3,311.49/x
  3. Step 3: Cross multiply
    11,102.88x = 16,653.90 × 3,311.49
  4. Step 4: Simplify right side
    11,102.88x = 55,149,223.31
  5. Step 5: Solve for x
    x = 55,149,223.31/11,102.88
  6. Step 6: Final answer
    x = 4,967.11

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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.