Home / 11,890.45-17,853.66-9,445.09

Finding the Fourth Proportional to 11,890.45, 17,853.66 and 9,445.09

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Solution

The fourth proportional to 11,890.45, 17,853.66 and 9,445.09 is: 14,181.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,890.45 : 17,853.66 = 9,445.09 : x
  2. Step 2: Convert to fraction form
    11,890.45/17,853.66 = 9,445.09/x
  3. Step 3: Cross multiply
    11,890.45x = 17,853.66 × 9,445.09
  4. Step 4: Simplify right side
    11,890.45x = 168,629,425.53
  5. Step 5: Solve for x
    x = 168,629,425.53/11,890.45
  6. Step 6: Final answer
    x = 14,181.92

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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.