Home / 9,211.87-13,820.55-2,972.86

Finding the Fourth Proportional to 9,211.87, 13,820.55 and 2,972.86

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Solution

The fourth proportional to 9,211.87, 13,820.55 and 2,972.86 is: 4,460.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,211.87 : 13,820.55 = 2,972.86 : x
  2. Step 2: Convert to fraction form
    9,211.87/13,820.55 = 2,972.86/x
  3. Step 3: Cross multiply
    9,211.87x = 13,820.55 × 2,972.86
  4. Step 4: Simplify right side
    9,211.87x = 41,086,560.27
  5. Step 5: Solve for x
    x = 41,086,560.27/9,211.87
  6. Step 6: Final answer
    x = 4,460.18

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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.