Home / 7,827.20-11,730.72-3,443.52

Finding the Fourth Proportional to 7,827.20, 11,730.72 and 3,443.52

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Solution

The fourth proportional to 7,827.20, 11,730.72 and 3,443.52 is: 5,160.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,827.20 : 11,730.72 = 3,443.52 : x
  2. Step 2: Convert to fraction form
    7,827.20/11,730.72 = 3,443.52/x
  3. Step 3: Cross multiply
    7,827.20x = 11,730.72 × 3,443.52
  4. Step 4: Simplify right side
    7,827.20x = 40,394,968.93
  5. Step 5: Solve for x
    x = 40,394,968.93/7,827.20
  6. Step 6: Final answer
    x = 5,160.85

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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.