Home / 13,519.05-18,655.20-7,550.37

Finding the Fourth Proportional to 13,519.05, 18,655.20 and 7,550.37

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Solution

The fourth proportional to 13,519.05, 18,655.20 and 7,550.37 is: 10,418.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,519.05 : 18,655.20 = 7,550.37 : x
  2. Step 2: Convert to fraction form
    13,519.05/18,655.20 = 7,550.37/x
  3. Step 3: Cross multiply
    13,519.05x = 18,655.20 × 7,550.37
  4. Step 4: Simplify right side
    13,519.05x = 140,853,662.42
  5. Step 5: Solve for x
    x = 140,853,662.42/13,519.05
  6. Step 6: Final answer
    x = 10,418.90

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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.