Home / 18,217.02-25,140.56-11,144.80

Finding the Fourth Proportional to 18,217.02, 25,140.56 and 11,144.80

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Solution

The fourth proportional to 18,217.02, 25,140.56 and 11,144.80 is: 15,380.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,217.02 : 25,140.56 = 11,144.80 : x
  2. Step 2: Convert to fraction form
    18,217.02/25,140.56 = 11,144.80/x
  3. Step 3: Cross multiply
    18,217.02x = 25,140.56 × 11,144.80
  4. Step 4: Simplify right side
    18,217.02x = 280,186,513.09
  5. Step 5: Solve for x
    x = 280,186,513.09/18,217.02
  6. Step 6: Final answer
    x = 15,380.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.