Home / 9,212.20-13,818.31-2,972.66

Finding the Fourth Proportional to 9,212.20, 13,818.31 and 2,972.66

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Solution

The fourth proportional to 9,212.20, 13,818.31 and 2,972.66 is: 4,458.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,212.20 : 13,818.31 = 2,972.66 : x
  2. Step 2: Convert to fraction form
    9,212.20/13,818.31 = 2,972.66/x
  3. Step 3: Cross multiply
    9,212.20x = 13,818.31 × 2,972.66
  4. Step 4: Simplify right side
    9,212.20x = 41,077,060.88
  5. Step 5: Solve for x
    x = 41,077,060.88/9,212.20
  6. Step 6: Final answer
    x = 4,458.99

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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.