Home / 7,478.76-11,214.75-2,211.96

Finding the Fourth Proportional to 7,478.76, 11,214.75 and 2,211.96

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Solution

The fourth proportional to 7,478.76, 11,214.75 and 2,211.96 is: 3,316.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,478.76 : 11,214.75 = 2,211.96 : x
  2. Step 2: Convert to fraction form
    7,478.76/11,214.75 = 2,211.96/x
  3. Step 3: Cross multiply
    7,478.76x = 11,214.75 × 2,211.96
  4. Step 4: Simplify right side
    7,478.76x = 24,806,565.68
  5. Step 5: Solve for x
    x = 24,806,565.68/7,478.76
  6. Step 6: Final answer
    x = 3,316.94

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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.