Home / 18,203.40-25,120.37-10,245.44

Finding the Fourth Proportional to 18,203.40, 25,120.37 and 10,245.44

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Solution

The fourth proportional to 18,203.40, 25,120.37 and 10,245.44 is: 14,138.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,203.40 : 25,120.37 = 10,245.44 : x
  2. Step 2: Convert to fraction form
    18,203.40/25,120.37 = 10,245.44/x
  3. Step 3: Cross multiply
    18,203.40x = 25,120.37 × 10,245.44
  4. Step 4: Simplify right side
    18,203.40x = 257,369,066.78
  5. Step 5: Solve for x
    x = 257,369,066.78/18,203.40
  6. Step 6: Final answer
    x = 14,138.52

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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.