Home / 8,119.79-12,180.15-2,276.85

Finding the Fourth Proportional to 8,119.79, 12,180.15 and 2,276.85

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Solution

The fourth proportional to 8,119.79, 12,180.15 and 2,276.85 is: 3,415.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.79 : 12,180.15 = 2,276.85 : x
  2. Step 2: Convert to fraction form
    8,119.79/12,180.15 = 2,276.85/x
  3. Step 3: Cross multiply
    8,119.79x = 12,180.15 × 2,276.85
  4. Step 4: Simplify right side
    8,119.79x = 27,732,420.20
  5. Step 5: Solve for x
    x = 27,732,420.20/8,119.79
  6. Step 6: Final answer
    x = 3,415.41

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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.