Home / 9,162.63-13,739.04-2,920.95

Finding the Fourth Proportional to 9,162.63, 13,739.04 and 2,920.95

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Solution

The fourth proportional to 9,162.63, 13,739.04 and 2,920.95 is: 4,379.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,162.63 : 13,739.04 = 2,920.95 : x
  2. Step 2: Convert to fraction form
    9,162.63/13,739.04 = 2,920.95/x
  3. Step 3: Cross multiply
    9,162.63x = 13,739.04 × 2,920.95
  4. Step 4: Simplify right side
    9,162.63x = 40,131,048.89
  5. Step 5: Solve for x
    x = 40,131,048.89/9,162.63
  6. Step 6: Final answer
    x = 4,379.86

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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.