Home / 14,121.51-21,181.11-4,761.33

Finding the Fourth Proportional to 14,121.51, 21,181.11 and 4,761.33

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Solution

The fourth proportional to 14,121.51, 21,181.11 and 4,761.33 is: 7,141.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,121.51 : 21,181.11 = 4,761.33 : x
  2. Step 2: Convert to fraction form
    14,121.51/21,181.11 = 4,761.33/x
  3. Step 3: Cross multiply
    14,121.51x = 21,181.11 × 4,761.33
  4. Step 4: Simplify right side
    14,121.51x = 100,850,157.19
  5. Step 5: Solve for x
    x = 100,850,157.19/14,121.51
  6. Step 6: Final answer
    x = 7,141.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.