Home / 13,734.89-20,603.21-5,305.42

Finding the Fourth Proportional to 13,734.89, 20,603.21 and 5,305.42

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Solution

The fourth proportional to 13,734.89, 20,603.21 and 5,305.42 is: 7,958.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,734.89 : 20,603.21 = 5,305.42 : x
  2. Step 2: Convert to fraction form
    13,734.89/20,603.21 = 5,305.42/x
  3. Step 3: Cross multiply
    13,734.89x = 20,603.21 × 5,305.42
  4. Step 4: Simplify right side
    13,734.89x = 109,308,565.73
  5. Step 5: Solve for x
    x = 109,308,565.73/13,734.89
  6. Step 6: Final answer
    x = 7,958.46

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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.