Home / 9,721.18-14,582.22-3,147.88

Finding the Fourth Proportional to 9,721.18, 14,582.22 and 3,147.88

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Solution

The fourth proportional to 9,721.18, 14,582.22 and 3,147.88 is: 4,721.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,721.18 : 14,582.22 = 3,147.88 : x
  2. Step 2: Convert to fraction form
    9,721.18/14,582.22 = 3,147.88/x
  3. Step 3: Cross multiply
    9,721.18x = 14,582.22 × 3,147.88
  4. Step 4: Simplify right side
    9,721.18x = 45,903,078.69
  5. Step 5: Solve for x
    x = 45,903,078.69/9,721.18
  6. Step 6: Final answer
    x = 4,721.97

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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.