Home / 8,136.65-11,228.61-5,149.37

Finding the Fourth Proportional to 8,136.65, 11,228.61 and 5,149.37

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Solution

The fourth proportional to 8,136.65, 11,228.61 and 5,149.37 is: 7,106.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,136.65 : 11,228.61 = 5,149.37 : x
  2. Step 2: Convert to fraction form
    8,136.65/11,228.61 = 5,149.37/x
  3. Step 3: Cross multiply
    8,136.65x = 11,228.61 × 5,149.37
  4. Step 4: Simplify right side
    8,136.65x = 57,820,211.33
  5. Step 5: Solve for x
    x = 57,820,211.33/8,136.65
  6. Step 6: Final answer
    x = 7,106.15

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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.