Home / 18,203.64-25,120.97-10,245.87

Finding the Fourth Proportional to 18,203.64, 25,120.97 and 10,245.87

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Solution

The fourth proportional to 18,203.64, 25,120.97 and 10,245.87 is: 14,139.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,203.64 : 25,120.97 = 10,245.87 : x
  2. Step 2: Convert to fraction form
    18,203.64/25,120.97 = 10,245.87/x
  3. Step 3: Cross multiply
    18,203.64x = 25,120.97 × 10,245.87
  4. Step 4: Simplify right side
    18,203.64x = 257,386,016.06
  5. Step 5: Solve for x
    x = 257,386,016.06/18,203.64
  6. Step 6: Final answer
    x = 14,139.26

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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.