Home / 11,400.85-17,103.91-3,609.66

Finding the Fourth Proportional to 11,400.85, 17,103.91 and 3,609.66

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Solution

The fourth proportional to 11,400.85, 17,103.91 and 3,609.66 is: 5,415.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,400.85 : 17,103.91 = 3,609.66 : x
  2. Step 2: Convert to fraction form
    11,400.85/17,103.91 = 3,609.66/x
  3. Step 3: Cross multiply
    11,400.85x = 17,103.91 × 3,609.66
  4. Step 4: Simplify right side
    11,400.85x = 61,739,368.42
  5. Step 5: Solve for x
    x = 61,739,368.42/11,400.85
  6. Step 6: Final answer
    x = 5,415.33

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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.