Home / 13,721.05-20,575.50-4,956.04

Finding the Fourth Proportional to 13,721.05, 20,575.50 and 4,956.04

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Solution

The fourth proportional to 13,721.05, 20,575.50 and 4,956.04 is: 7,431.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721.05 : 20,575.50 = 4,956.04 : x
  2. Step 2: Convert to fraction form
    13,721.05/20,575.50 = 4,956.04/x
  3. Step 3: Cross multiply
    13,721.05x = 20,575.50 × 4,956.04
  4. Step 4: Simplify right side
    13,721.05x = 101,973,001.02
  5. Step 5: Solve for x
    x = 101,973,001.02/13,721.05
  6. Step 6: Final answer
    x = 7,431.87

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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.