Home / 12,542.43-18,816.54-4,222.23

Finding the Fourth Proportional to 12,542.43, 18,816.54 and 4,222.23

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Solution

The fourth proportional to 12,542.43, 18,816.54 and 4,222.23 is: 6,334.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,542.43 : 18,816.54 = 4,222.23 : x
  2. Step 2: Convert to fraction form
    12,542.43/18,816.54 = 4,222.23/x
  3. Step 3: Cross multiply
    12,542.43x = 18,816.54 × 4,222.23
  4. Step 4: Simplify right side
    12,542.43x = 79,447,759.68
  5. Step 5: Solve for x
    x = 79,447,759.68/12,542.43
  6. Step 6: Final answer
    x = 6,334.32

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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.