Home / 8,119.60-12,179.06-4,825.43

Finding the Fourth Proportional to 8,119.60, 12,179.06 and 4,825.43

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Solution

The fourth proportional to 8,119.60, 12,179.06 and 4,825.43 is: 7,237.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.60 : 12,179.06 = 4,825.43 : x
  2. Step 2: Convert to fraction form
    8,119.60/12,179.06 = 4,825.43/x
  3. Step 3: Cross multiply
    8,119.60x = 12,179.06 × 4,825.43
  4. Step 4: Simplify right side
    8,119.60x = 58,769,207.82
  5. Step 5: Solve for x
    x = 58,769,207.82/8,119.60
  6. Step 6: Final answer
    x = 7,237.95

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1.5x scale

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.