Home / 11,238.05-16,858.90-4,218.62

Finding the Fourth Proportional to 11,238.05, 16,858.90 and 4,218.62

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Solution

The fourth proportional to 11,238.05, 16,858.90 and 4,218.62 is: 6,328.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,238.05 : 16,858.90 = 4,218.62 : x
  2. Step 2: Convert to fraction form
    11,238.05/16,858.90 = 4,218.62/x
  3. Step 3: Cross multiply
    11,238.05x = 16,858.90 × 4,218.62
  4. Step 4: Simplify right side
    11,238.05x = 71,121,208.42
  5. Step 5: Solve for x
    x = 71,121,208.42/11,238.05
  6. Step 6: Final answer
    x = 6,328.61

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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.