Home / 18,128.82-25,017.66-10,171.02

Finding the Fourth Proportional to 18,128.82, 25,017.66 and 10,171.02

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Solution

The fourth proportional to 18,128.82, 25,017.66 and 10,171.02 is: 14,035.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,128.82 : 25,017.66 = 10,171.02 : x
  2. Step 2: Convert to fraction form
    18,128.82/25,017.66 = 10,171.02/x
  3. Step 3: Cross multiply
    18,128.82x = 25,017.66 × 10,171.02
  4. Step 4: Simplify right side
    18,128.82x = 254,455,120.21
  5. Step 5: Solve for x
    x = 254,455,120.21/18,128.82
  6. Step 6: Final answer
    x = 14,035.94

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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.