Home / 13,998.89-21,001.44-5,114.20

Finding the Fourth Proportional to 13,998.89, 21,001.44 and 5,114.20

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Solution

The fourth proportional to 13,998.89, 21,001.44 and 5,114.20 is: 7,672.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,998.89 : 21,001.44 = 5,114.20 : x
  2. Step 2: Convert to fraction form
    13,998.89/21,001.44 = 5,114.20/x
  3. Step 3: Cross multiply
    13,998.89x = 21,001.44 × 5,114.20
  4. Step 4: Simplify right side
    13,998.89x = 107,405,524.73
  5. Step 5: Solve for x
    x = 107,405,524.73/13,998.89
  6. Step 6: Final answer
    x = 7,672.43

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1.5x scale

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.