Home / 11,136.35-15,357.56-6,659.38

Finding the Fourth Proportional to 11,136.35, 15,357.56 and 6,659.38

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Solution

The fourth proportional to 11,136.35, 15,357.56 and 6,659.38 is: 9,183.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136.35 : 15,357.56 = 6,659.38 : x
  2. Step 2: Convert to fraction form
    11,136.35/15,357.56 = 6,659.38/x
  3. Step 3: Cross multiply
    11,136.35x = 15,357.56 × 6,659.38
  4. Step 4: Simplify right side
    11,136.35x = 102,271,806.17
  5. Step 5: Solve for x
    x = 102,271,806.17/11,136.35
  6. Step 6: Final answer
    x = 9,183.60

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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.