Home / 18,521.49-25,556.91-11,249.81

Finding the Fourth Proportional to 18,521.49, 25,556.91 and 11,249.81

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Solution

The fourth proportional to 18,521.49, 25,556.91 and 11,249.81 is: 15,523.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,521.49 : 25,556.91 = 11,249.81 : x
  2. Step 2: Convert to fraction form
    18,521.49/25,556.91 = 11,249.81/x
  3. Step 3: Cross multiply
    18,521.49x = 25,556.91 × 11,249.81
  4. Step 4: Simplify right side
    18,521.49x = 287,510,253.90
  5. Step 5: Solve for x
    x = 287,510,253.90/18,521.49
  6. Step 6: Final answer
    x = 15,523.06

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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.