Home / 18,476.85-25,499.97-11,311.59

Finding the Fourth Proportional to 18,476.85, 25,499.97 and 11,311.59

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Solution

The fourth proportional to 18,476.85, 25,499.97 and 11,311.59 is: 15,611.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,476.85 : 25,499.97 = 11,311.59 : x
  2. Step 2: Convert to fraction form
    18,476.85/25,499.97 = 11,311.59/x
  3. Step 3: Cross multiply
    18,476.85x = 25,499.97 × 11,311.59
  4. Step 4: Simplify right side
    18,476.85x = 288,445,205.65
  5. Step 5: Solve for x
    x = 288,445,205.65/18,476.85
  6. Step 6: Final answer
    x = 15,611.17

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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.