Home / 7,477.68-11,213.90-2,211.28

Finding the Fourth Proportional to 7,477.68, 11,213.90 and 2,211.28

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Solution

The fourth proportional to 7,477.68, 11,213.90 and 2,211.28 is: 3,316.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477.68 : 11,213.90 = 2,211.28 : x
  2. Step 2: Convert to fraction form
    7,477.68/11,213.90 = 2,211.28/x
  3. Step 3: Cross multiply
    7,477.68x = 11,213.90 × 2,211.28
  4. Step 4: Simplify right side
    7,477.68x = 24,797,072.79
  5. Step 5: Solve for x
    x = 24,797,072.79/7,477.68
  6. Step 6: Final answer
    x = 3,316.15

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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.