Home / 11,136.80-15,350.94-7,550.66

Finding the Fourth Proportional to 11,136.80, 15,350.94 and 7,550.66

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Solution

The fourth proportional to 11,136.80, 15,350.94 and 7,550.66 is: 10,407.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,136.80 : 15,350.94 = 7,550.66 : x
  2. Step 2: Convert to fraction form
    11,136.80/15,350.94 = 7,550.66/x
  3. Step 3: Cross multiply
    11,136.80x = 15,350.94 × 7,550.66
  4. Step 4: Simplify right side
    11,136.80x = 115,909,728.62
  5. Step 5: Solve for x
    x = 115,909,728.62/11,136.80
  6. Step 6: Final answer
    x = 10,407.81

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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.