Home / 18,201.85-25,117.48-10,243.75

Finding the Fourth Proportional to 18,201.85, 25,117.48 and 10,243.75

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Solution

The fourth proportional to 18,201.85, 25,117.48 and 10,243.75 is: 14,135.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,201.85 : 25,117.48 = 10,243.75 : x
  2. Step 2: Convert to fraction form
    18,201.85/25,117.48 = 10,243.75/x
  3. Step 3: Cross multiply
    18,201.85x = 25,117.48 × 10,243.75
  4. Step 4: Simplify right side
    18,201.85x = 257,297,185.75
  5. Step 5: Solve for x
    x = 257,297,185.75/18,201.85
  6. Step 6: Final answer
    x = 14,135.77

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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.