Home / 12,276.26-18,415.75-4,380.62

Finding the Fourth Proportional to 12,276.26, 18,415.75 and 4,380.62

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Solution

The fourth proportional to 12,276.26, 18,415.75 and 4,380.62 is: 6,571.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,276.26 : 18,415.75 = 4,380.62 : x
  2. Step 2: Convert to fraction form
    12,276.26/18,415.75 = 4,380.62/x
  3. Step 3: Cross multiply
    12,276.26x = 18,415.75 × 4,380.62
  4. Step 4: Simplify right side
    12,276.26x = 80,672,402.77
  5. Step 5: Solve for x
    x = 80,672,402.77/12,276.26
  6. Step 6: Final answer
    x = 6,571.42

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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.