Home / 18,198.66-25,115.62-10,240.40

Finding the Fourth Proportional to 18,198.66, 25,115.62 and 10,240.40

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Solution

The fourth proportional to 18,198.66, 25,115.62 and 10,240.40 is: 14,132.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,198.66 : 25,115.62 = 10,240.40 : x
  2. Step 2: Convert to fraction form
    18,198.66/25,115.62 = 10,240.40/x
  3. Step 3: Cross multiply
    18,198.66x = 25,115.62 × 10,240.40
  4. Step 4: Simplify right side
    18,198.66x = 257,193,995.05
  5. Step 5: Solve for x
    x = 257,193,995.05/18,198.66
  6. Step 6: Final answer
    x = 14,132.58

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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.