Home / 11,620.23-17,430.76-3,721.72

Finding the Fourth Proportional to 11,620.23, 17,430.76 and 3,721.72

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Solution

The fourth proportional to 11,620.23, 17,430.76 and 3,721.72 is: 5,582.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.23 : 17,430.76 = 3,721.72 : x
  2. Step 2: Convert to fraction form
    11,620.23/17,430.76 = 3,721.72/x
  3. Step 3: Cross multiply
    11,620.23x = 17,430.76 × 3,721.72
  4. Step 4: Simplify right side
    11,620.23x = 64,872,345.92
  5. Step 5: Solve for x
    x = 64,872,345.92/11,620.23
  6. Step 6: Final answer
    x = 5,582.71

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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.