Home / 18,611.82-25,684.18-10,113.86

Finding the Fourth Proportional to 18,611.82, 25,684.18 and 10,113.86

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Solution

The fourth proportional to 18,611.82, 25,684.18 and 10,113.86 is: 13,957.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,611.82 : 25,684.18 = 10,113.86 : x
  2. Step 2: Convert to fraction form
    18,611.82/25,684.18 = 10,113.86/x
  3. Step 3: Cross multiply
    18,611.82x = 25,684.18 × 10,113.86
  4. Step 4: Simplify right side
    18,611.82x = 259,766,239.66
  5. Step 5: Solve for x
    x = 259,766,239.66/18,611.82
  6. Step 6: Final answer
    x = 13,957.06

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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.