Home / 9,211.34-13,819.70-2,971.21

Finding the Fourth Proportional to 9,211.34, 13,819.70 and 2,971.21

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Solution

The fourth proportional to 9,211.34, 13,819.70 and 2,971.21 is: 4,457.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,211.34 : 13,819.70 = 2,971.21 : x
  2. Step 2: Convert to fraction form
    9,211.34/13,819.70 = 2,971.21/x
  3. Step 3: Cross multiply
    9,211.34x = 13,819.70 × 2,971.21
  4. Step 4: Simplify right side
    9,211.34x = 41,061,295.56
  5. Step 5: Solve for x
    x = 41,061,295.56/9,211.34
  6. Step 6: Final answer
    x = 4,457.69

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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.