Home / 12,168.43-18,255.58-3,403.22

Finding the Fourth Proportional to 12,168.43, 18,255.58 and 3,403.22

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Solution

The fourth proportional to 12,168.43, 18,255.58 and 3,403.22 is: 5,105.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,168.43 : 18,255.58 = 3,403.22 : x
  2. Step 2: Convert to fraction form
    12,168.43/18,255.58 = 3,403.22/x
  3. Step 3: Cross multiply
    12,168.43x = 18,255.58 × 3,403.22
  4. Step 4: Simplify right side
    12,168.43x = 62,127,655.18
  5. Step 5: Solve for x
    x = 62,127,655.18/12,168.43
  6. Step 6: Final answer
    x = 5,105.64

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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.