Home / 18,279.36-25,226.10-11,212.92

Finding the Fourth Proportional to 18,279.36, 25,226.10 and 11,212.92

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Solution

The fourth proportional to 18,279.36, 25,226.10 and 11,212.92 is: 15,474.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,279.36 : 25,226.10 = 11,212.92 : x
  2. Step 2: Convert to fraction form
    18,279.36/25,226.10 = 11,212.92/x
  3. Step 3: Cross multiply
    18,279.36x = 25,226.10 × 11,212.92
  4. Step 4: Simplify right side
    18,279.36x = 282,858,241.21
  5. Step 5: Solve for x
    x = 282,858,241.21/18,279.36
  6. Step 6: Final answer
    x = 15,474.19

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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.