Home / 18,135.63-25,025.86-10,179.03

Finding the Fourth Proportional to 18,135.63, 25,025.86 and 10,179.03

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Solution

The fourth proportional to 18,135.63, 25,025.86 and 10,179.03 is: 14,046.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,135.63 : 25,025.86 = 10,179.03 : x
  2. Step 2: Convert to fraction form
    18,135.63/25,025.86 = 10,179.03/x
  3. Step 3: Cross multiply
    18,135.63x = 25,025.86 × 10,179.03
  4. Step 4: Simplify right side
    18,135.63x = 254,739,086.29
  5. Step 5: Solve for x
    x = 254,739,086.29/18,135.63
  6. Step 6: Final answer
    x = 14,046.33

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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.