Home / 8,679.85-11,977.33-4,850.78

Finding the Fourth Proportional to 8,679.85, 11,977.33 and 4,850.78

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Solution

The fourth proportional to 8,679.85, 11,977.33 and 4,850.78 is: 6,693.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,679.85 : 11,977.33 = 4,850.78 : x
  2. Step 2: Convert to fraction form
    8,679.85/11,977.33 = 4,850.78/x
  3. Step 3: Cross multiply
    8,679.85x = 11,977.33 × 4,850.78
  4. Step 4: Simplify right side
    8,679.85x = 58,099,332.93
  5. Step 5: Solve for x
    x = 58,099,332.93/8,679.85
  6. Step 6: Final answer
    x = 6,693.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.