Home / 7,918.11-11,874.78-4,167.86

Finding the Fourth Proportional to 7,918.11, 11,874.78 and 4,167.86

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Solution

The fourth proportional to 7,918.11, 11,874.78 and 4,167.86 is: 6,250.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,918.11 : 11,874.78 = 4,167.86 : x
  2. Step 2: Convert to fraction form
    7,918.11/11,874.78 = 4,167.86/x
  3. Step 3: Cross multiply
    7,918.11x = 11,874.78 × 4,167.86
  4. Step 4: Simplify right side
    7,918.11x = 49,492,361.20
  5. Step 5: Solve for x
    x = 49,492,361.20/7,918.11
  6. Step 6: Final answer
    x = 6,250.53

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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.