Home / 18,199.50-25,115.58-11,124.42

Finding the Fourth Proportional to 18,199.50, 25,115.58 and 11,124.42

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Solution

The fourth proportional to 18,199.50, 25,115.58 and 11,124.42 is: 15,351.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,199.50 : 25,115.58 = 11,124.42 : x
  2. Step 2: Convert to fraction form
    18,199.50/25,115.58 = 11,124.42/x
  3. Step 3: Cross multiply
    18,199.50x = 25,115.58 × 11,124.42
  4. Step 4: Simplify right side
    18,199.50x = 279,396,260.46
  5. Step 5: Solve for x
    x = 279,396,260.46/18,199.50
  6. Step 6: Final answer
    x = 15,351.86

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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.