Home / 8,418.42-12,627.90-2,871.54

Finding the Fourth Proportional to 8,418.42, 12,627.90 and 2,871.54

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Solution

The fourth proportional to 8,418.42, 12,627.90 and 2,871.54 is: 4,307.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,418.42 : 12,627.90 = 2,871.54 : x
  2. Step 2: Convert to fraction form
    8,418.42/12,627.90 = 2,871.54/x
  3. Step 3: Cross multiply
    8,418.42x = 12,627.90 × 2,871.54
  4. Step 4: Simplify right side
    8,418.42x = 36,261,519.97
  5. Step 5: Solve for x
    x = 36,261,519.97/8,418.42
  6. Step 6: Final answer
    x = 4,307.40

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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.