Home / 12,213.50-18,320.27-4,420.49

Finding the Fourth Proportional to 12,213.50, 18,320.27 and 4,420.49

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Solution

The fourth proportional to 12,213.50, 18,320.27 and 4,420.49 is: 6,630.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,213.50 : 18,320.27 = 4,420.49 : x
  2. Step 2: Convert to fraction form
    12,213.50/18,320.27 = 4,420.49/x
  3. Step 3: Cross multiply
    12,213.50x = 18,320.27 × 4,420.49
  4. Step 4: Simplify right side
    12,213.50x = 80,984,456.63
  5. Step 5: Solve for x
    x = 80,984,456.63/12,213.50
  6. Step 6: Final answer
    x = 6,630.74

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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.