Home / 18,519.78-25,559.34-10,563.96

Finding the Fourth Proportional to 18,519.78, 25,559.34 and 10,563.96

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Solution

The fourth proportional to 18,519.78, 25,559.34 and 10,563.96 is: 14,579.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,519.78 : 25,559.34 = 10,563.96 : x
  2. Step 2: Convert to fraction form
    18,519.78/25,559.34 = 10,563.96/x
  3. Step 3: Cross multiply
    18,519.78x = 25,559.34 × 10,563.96
  4. Step 4: Simplify right side
    18,519.78x = 270,007,845.39
  5. Step 5: Solve for x
    x = 270,007,845.39/18,519.78
  6. Step 6: Final answer
    x = 14,579.43

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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.