Home / 7,446.72-11,172.66-4,957.89

Finding the Fourth Proportional to 7,446.72, 11,172.66 and 4,957.89

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Solution

The fourth proportional to 7,446.72, 11,172.66 and 4,957.89 is: 7,438.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,446.72 : 11,172.66 = 4,957.89 : x
  2. Step 2: Convert to fraction form
    7,446.72/11,172.66 = 4,957.89/x
  3. Step 3: Cross multiply
    7,446.72x = 11,172.66 × 4,957.89
  4. Step 4: Simplify right side
    7,446.72x = 55,392,819.29
  5. Step 5: Solve for x
    x = 55,392,819.29/7,446.72
  6. Step 6: Final answer
    x = 7,438.55

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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.