Home / 18,611.18-25,680.53-11,057.31

Finding the Fourth Proportional to 18,611.18, 25,680.53 and 11,057.31

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Solution

The fourth proportional to 18,611.18, 25,680.53 and 11,057.31 is: 15,257.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,611.18 : 25,680.53 = 11,057.31 : x
  2. Step 2: Convert to fraction form
    18,611.18/25,680.53 = 11,057.31/x
  3. Step 3: Cross multiply
    18,611.18x = 25,680.53 × 11,057.31
  4. Step 4: Simplify right side
    18,611.18x = 283,957,525.89
  5. Step 5: Solve for x
    x = 283,957,525.89/18,611.18
  6. Step 6: Final answer
    x = 15,257.37

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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.