Home / 8,260.54-12,391.52-2,639.01

Finding the Fourth Proportional to 8,260.54, 12,391.52 and 2,639.01

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Solution

The fourth proportional to 8,260.54, 12,391.52 and 2,639.01 is: 3,958.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,260.54 : 12,391.52 = 2,639.01 : x
  2. Step 2: Convert to fraction form
    8,260.54/12,391.52 = 2,639.01/x
  3. Step 3: Cross multiply
    8,260.54x = 12,391.52 × 2,639.01
  4. Step 4: Simplify right side
    8,260.54x = 32,701,378.47
  5. Step 5: Solve for x
    x = 32,701,378.47/8,260.54
  6. Step 6: Final answer
    x = 3,958.75

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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.