Home / 12,161.92-18,247.20-4,372.96

Finding the Fourth Proportional to 12,161.92, 18,247.20 and 4,372.96

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Solution

The fourth proportional to 12,161.92, 18,247.20 and 4,372.96 is: 6,560.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161.92 : 18,247.20 = 4,372.96 : x
  2. Step 2: Convert to fraction form
    12,161.92/18,247.20 = 4,372.96/x
  3. Step 3: Cross multiply
    12,161.92x = 18,247.20 × 4,372.96
  4. Step 4: Simplify right side
    12,161.92x = 79,794,275.71
  5. Step 5: Solve for x
    x = 79,794,275.71/12,161.92
  6. Step 6: Final answer
    x = 6,560.99

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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.