Home / 18,500.02-25,532.36-12,131.97

Finding the Fourth Proportional to 18,500.02, 25,532.36 and 12,131.97

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Solution

The fourth proportional to 18,500.02, 25,532.36 and 12,131.97 is: 16,743.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,500.02 : 25,532.36 = 12,131.97 : x
  2. Step 2: Convert to fraction form
    18,500.02/25,532.36 = 12,131.97/x
  3. Step 3: Cross multiply
    18,500.02x = 25,532.36 × 12,131.97
  4. Step 4: Simplify right side
    18,500.02x = 309,757,760.13
  5. Step 5: Solve for x
    x = 309,757,760.13/18,500.02
  6. Step 6: Final answer
    x = 16,743.65

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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.