Home / 8,718.95-13,076.60-2,874.20

Finding the Fourth Proportional to 8,718.95, 13,076.60 and 2,874.20

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Solution

The fourth proportional to 8,718.95, 13,076.60 and 2,874.20 is: 4,310.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.95 : 13,076.60 = 2,874.20 : x
  2. Step 2: Convert to fraction form
    8,718.95/13,076.60 = 2,874.20/x
  3. Step 3: Cross multiply
    8,718.95x = 13,076.60 × 2,874.20
  4. Step 4: Simplify right side
    8,718.95x = 37,584,683.97
  5. Step 5: Solve for x
    x = 37,584,683.97/8,718.95
  6. Step 6: Final answer
    x = 4,310.69

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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.