Home / 7,455.90-11,183.82-1,909.23

Finding the Fourth Proportional to 7,455.90, 11,183.82 and 1,909.23

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Solution

The fourth proportional to 7,455.90, 11,183.82 and 1,909.23 is: 2,863.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,455.90 : 11,183.82 = 1,909.23 : x
  2. Step 2: Convert to fraction form
    7,455.90/11,183.82 = 1,909.23/x
  3. Step 3: Cross multiply
    7,455.90x = 11,183.82 × 1,909.23
  4. Step 4: Simplify right side
    7,455.90x = 21,352,484.66
  5. Step 5: Solve for x
    x = 21,352,484.66/7,455.90
  6. Step 6: Final answer
    x = 2,863.84

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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.