Home / 7,136.20-10,717.10-5,190.60

Finding the Fourth Proportional to 7,136.20, 10,717.10 and 5,190.60

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Solution

The fourth proportional to 7,136.20, 10,717.10 and 5,190.60 is: 7,795.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.20 : 10,717.10 = 5,190.60 : x
  2. Step 2: Convert to fraction form
    7,136.20/10,717.10 = 5,190.60/x
  3. Step 3: Cross multiply
    7,136.20x = 10,717.10 × 5,190.60
  4. Step 4: Simplify right side
    7,136.20x = 55,628,179.26
  5. Step 5: Solve for x
    x = 55,628,179.26/7,136.20
  6. Step 6: Final answer
    x = 7,795.21

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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.