Home / 18,505.32-25,537.94-10,121.82

Finding the Fourth Proportional to 18,505.32, 25,537.94 and 10,121.82

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Solution

The fourth proportional to 18,505.32, 25,537.94 and 10,121.82 is: 13,968.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,505.32 : 25,537.94 = 10,121.82 : x
  2. Step 2: Convert to fraction form
    18,505.32/25,537.94 = 10,121.82/x
  3. Step 3: Cross multiply
    18,505.32x = 25,537.94 × 10,121.82
  4. Step 4: Simplify right side
    18,505.32x = 258,490,381.24
  5. Step 5: Solve for x
    x = 258,490,381.24/18,505.32
  6. Step 6: Final answer
    x = 13,968.44

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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.