Home / 11,121.12-16,682.16-4,196.16

Finding the Fourth Proportional to 11,121.12, 16,682.16 and 4,196.16

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Solution

The fourth proportional to 11,121.12, 16,682.16 and 4,196.16 is: 6,294.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,121.12 : 16,682.16 = 4,196.16 : x
  2. Step 2: Convert to fraction form
    11,121.12/16,682.16 = 4,196.16/x
  3. Step 3: Cross multiply
    11,121.12x = 16,682.16 × 4,196.16
  4. Step 4: Simplify right side
    11,121.12x = 70,001,012.51
  5. Step 5: Solve for x
    x = 70,001,012.51/11,121.12
  6. Step 6: Final answer
    x = 6,294.42

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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.