Home / 13,579.56-18,741-7,914

Finding the Fourth Proportional to 13,579.56, 18,741 and 7,914

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Solution

The fourth proportional to 13,579.56, 18,741 and 7,914 is: 10,922.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,579.56 : 18,741 = 7,914 : x
  2. Step 2: Convert to fraction form
    13,579.56/18,741 = 7,914/x
  3. Step 3: Cross multiply
    13,579.56x = 18,741 × 7,914
  4. Step 4: Simplify right side
    13,579.56x = 148,316,274
  5. Step 5: Solve for x
    x = 148,316,274/13,579.56
  6. Step 6: Final answer
    x = 10,922.02

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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.