Home / 8,279.08-11,419.99-5,135.27

Finding the Fourth Proportional to 8,279.08, 11,419.99 and 5,135.27

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Solution

The fourth proportional to 8,279.08, 11,419.99 and 5,135.27 is: 7,083.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,279.08 : 11,419.99 = 5,135.27 : x
  2. Step 2: Convert to fraction form
    8,279.08/11,419.99 = 5,135.27/x
  3. Step 3: Cross multiply
    8,279.08x = 11,419.99 × 5,135.27
  4. Step 4: Simplify right side
    8,279.08x = 58,644,662.11
  5. Step 5: Solve for x
    x = 58,644,662.11/8,279.08
  6. Step 6: Final answer
    x = 7,083.48

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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.