Home / 12,124.43-18,168.06-8,161.02

Finding the Fourth Proportional to 12,124.43, 18,168.06 and 8,161.02

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Solution

The fourth proportional to 12,124.43, 18,168.06 and 8,161.02 is: 12,229.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,124.43 : 18,168.06 = 8,161.02 : x
  2. Step 2: Convert to fraction form
    12,124.43/18,168.06 = 8,161.02/x
  3. Step 3: Cross multiply
    12,124.43x = 18,168.06 × 8,161.02
  4. Step 4: Simplify right side
    12,124.43x = 148,269,901.02
  5. Step 5: Solve for x
    x = 148,269,901.02/12,124.43
  6. Step 6: Final answer
    x = 12,229.03

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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.