Home / 13,218.03-18,241.13-7,249.34

Finding the Fourth Proportional to 13,218.03, 18,241.13 and 7,249.34

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Solution

The fourth proportional to 13,218.03, 18,241.13 and 7,249.34 is: 10,004.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,218.03 : 18,241.13 = 7,249.34 : x
  2. Step 2: Convert to fraction form
    13,218.03/18,241.13 = 7,249.34/x
  3. Step 3: Cross multiply
    13,218.03x = 18,241.13 × 7,249.34
  4. Step 4: Simplify right side
    13,218.03x = 132,236,025.90
  5. Step 5: Solve for x
    x = 132,236,025.90/13,218.03
  6. Step 6: Final answer
    x = 10,004.22

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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.