Home / 8,260.79-12,390.04-2,338.12

Finding the Fourth Proportional to 8,260.79, 12,390.04 and 2,338.12

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Solution

The fourth proportional to 8,260.79, 12,390.04 and 2,338.12 is: 3,506.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,260.79 : 12,390.04 = 2,338.12 : x
  2. Step 2: Convert to fraction form
    8,260.79/12,390.04 = 2,338.12/x
  3. Step 3: Cross multiply
    8,260.79x = 12,390.04 × 2,338.12
  4. Step 4: Simplify right side
    8,260.79x = 28,969,342.47
  5. Step 5: Solve for x
    x = 28,969,342.47/8,260.79
  6. Step 6: Final answer
    x = 3,506.85

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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.