Home / 15,186.80-20,926.68-11,201.60

Finding the Fourth Proportional to 15,186.80, 20,926.68 and 11,201.60

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Solution

The fourth proportional to 15,186.80, 20,926.68 and 11,201.60 is: 15,435.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,186.80 : 20,926.68 = 11,201.60 : x
  2. Step 2: Convert to fraction form
    15,186.80/20,926.68 = 11,201.60/x
  3. Step 3: Cross multiply
    15,186.80x = 20,926.68 × 11,201.60
  4. Step 4: Simplify right side
    15,186.80x = 234,412,298.69
  5. Step 5: Solve for x
    x = 234,412,298.69/15,186.80
  6. Step 6: Final answer
    x = 15,435.27

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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.