Home / 18,138.68-25,028.21-10,181.24

Finding the Fourth Proportional to 18,138.68, 25,028.21 and 10,181.24

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Solution

The fourth proportional to 18,138.68, 25,028.21 and 10,181.24 is: 14,048.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138.68 : 25,028.21 = 10,181.24 : x
  2. Step 2: Convert to fraction form
    18,138.68/25,028.21 = 10,181.24/x
  3. Step 3: Cross multiply
    18,138.68x = 25,028.21 × 10,181.24
  4. Step 4: Simplify right side
    18,138.68x = 254,818,113.09
  5. Step 5: Solve for x
    x = 254,818,113.09/18,138.68
  6. Step 6: Final answer
    x = 14,048.33

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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.