Home / 18,243.13-25,177.89-10,287.85

Finding the Fourth Proportional to 18,243.13, 25,177.89 and 10,287.85

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Solution

The fourth proportional to 18,243.13, 25,177.89 and 10,287.85 is: 14,198.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,243.13 : 25,177.89 = 10,287.85 : x
  2. Step 2: Convert to fraction form
    18,243.13/25,177.89 = 10,287.85/x
  3. Step 3: Cross multiply
    18,243.13x = 25,177.89 × 10,287.85
  4. Step 4: Simplify right side
    18,243.13x = 259,026,355.64
  5. Step 5: Solve for x
    x = 259,026,355.64/18,243.13
  6. Step 6: Final answer
    x = 14,198.57

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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.