Home / 18,149.02-25,049.73-11,857.78

Finding the Fourth Proportional to 18,149.02, 25,049.73 and 11,857.78

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Solution

The fourth proportional to 18,149.02, 25,049.73 and 11,857.78 is: 16,366.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,149.02 : 25,049.73 = 11,857.78 : x
  2. Step 2: Convert to fraction form
    18,149.02/25,049.73 = 11,857.78/x
  3. Step 3: Cross multiply
    18,149.02x = 25,049.73 × 11,857.78
  4. Step 4: Simplify right side
    18,149.02x = 297,034,187.40
  5. Step 5: Solve for x
    x = 297,034,187.40/18,149.02
  6. Step 6: Final answer
    x = 16,366.40

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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.