Home / 11,136.35-15,357.55-6,659.39

Finding the Fourth Proportional to 11,136.35, 15,357.55 and 6,659.39

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Solution

The fourth proportional to 11,136.35, 15,357.55 and 6,659.39 is: 9,183.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136.35 : 15,357.55 = 6,659.39 : x
  2. Step 2: Convert to fraction form
    11,136.35/15,357.55 = 6,659.39/x
  3. Step 3: Cross multiply
    11,136.35x = 15,357.55 × 6,659.39
  4. Step 4: Simplify right side
    11,136.35x = 102,271,914.89
  5. Step 5: Solve for x
    x = 102,271,914.89/11,136.35
  6. Step 6: Final answer
    x = 9,183.61

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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.