Home / 18,243.68-25,178.78-10,693.02

Finding the Fourth Proportional to 18,243.68, 25,178.78 and 10,693.02

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Solution

The fourth proportional to 18,243.68, 25,178.78 and 10,693.02 is: 14,757.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,243.68 : 25,178.78 = 10,693.02 : x
  2. Step 2: Convert to fraction form
    18,243.68/25,178.78 = 10,693.02/x
  3. Step 3: Cross multiply
    18,243.68x = 25,178.78 × 10,693.02
  4. Step 4: Simplify right side
    18,243.68x = 269,237,198.12
  5. Step 5: Solve for x
    x = 269,237,198.12/18,243.68
  6. Step 6: Final answer
    x = 14,757.83

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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.