Home / 11,447.80-17,181.30-5,609.40

Finding the Fourth Proportional to 11,447.80, 17,181.30 and 5,609.40

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Solution

The fourth proportional to 11,447.80, 17,181.30 and 5,609.40 is: 8,418.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,447.80 : 17,181.30 = 5,609.40 : x
  2. Step 2: Convert to fraction form
    11,447.80/17,181.30 = 5,609.40/x
  3. Step 3: Cross multiply
    11,447.80x = 17,181.30 × 5,609.40
  4. Step 4: Simplify right side
    11,447.80x = 96,376,784.22
  5. Step 5: Solve for x
    x = 96,376,784.22/11,447.80
  6. Step 6: Final answer
    x = 8,418.80

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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.