Home / 18,086.36-24,960.02-10,128.38

Finding the Fourth Proportional to 18,086.36, 24,960.02 and 10,128.38

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Solution

The fourth proportional to 18,086.36, 24,960.02 and 10,128.38 is: 13,977.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,086.36 : 24,960.02 = 10,128.38 : x
  2. Step 2: Convert to fraction form
    18,086.36/24,960.02 = 10,128.38/x
  3. Step 3: Cross multiply
    18,086.36x = 24,960.02 × 10,128.38
  4. Step 4: Simplify right side
    18,086.36x = 252,804,391.93
  5. Step 5: Solve for x
    x = 252,804,391.93/18,086.36
  6. Step 6: Final answer
    x = 13,977.63

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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.