Home / 8,265.64-12,400.25-2,718.71

Finding the Fourth Proportional to 8,265.64, 12,400.25 and 2,718.71

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Solution

The fourth proportional to 8,265.64, 12,400.25 and 2,718.71 is: 4,078.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,265.64 : 12,400.25 = 2,718.71 : x
  2. Step 2: Convert to fraction form
    8,265.64/12,400.25 = 2,718.71/x
  3. Step 3: Cross multiply
    8,265.64x = 12,400.25 × 2,718.71
  4. Step 4: Simplify right side
    8,265.64x = 33,712,628.47
  5. Step 5: Solve for x
    x = 33,712,628.47/8,265.64
  6. Step 6: Final answer
    x = 4,078.65

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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.