Home / 9,519.78-13,136.66-5,540.26

Finding the Fourth Proportional to 9,519.78, 13,136.66 and 5,540.26

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Solution

The fourth proportional to 9,519.78, 13,136.66 and 5,540.26 is: 7,645.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,519.78 : 13,136.66 = 5,540.26 : x
  2. Step 2: Convert to fraction form
    9,519.78/13,136.66 = 5,540.26/x
  3. Step 3: Cross multiply
    9,519.78x = 13,136.66 × 5,540.26
  4. Step 4: Simplify right side
    9,519.78x = 72,780,511.93
  5. Step 5: Solve for x
    x = 72,780,511.93/9,519.78
  6. Step 6: Final answer
    x = 7,645.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.