Home / 11,786.05-16,272.30-7,316.38

Finding the Fourth Proportional to 11,786.05, 16,272.30 and 7,316.38

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Solution

The fourth proportional to 11,786.05, 16,272.30 and 7,316.38 is: 10,101.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,786.05 : 16,272.30 = 7,316.38 : x
  2. Step 2: Convert to fraction form
    11,786.05/16,272.30 = 7,316.38/x
  3. Step 3: Cross multiply
    11,786.05x = 16,272.30 × 7,316.38
  4. Step 4: Simplify right side
    11,786.05x = 119,054,330.27
  5. Step 5: Solve for x
    x = 119,054,330.27/11,786.05
  6. Step 6: Final answer
    x = 10,101.29

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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.