Home / 13,217.72-18,240.46-7,249.43

Finding the Fourth Proportional to 13,217.72, 18,240.46 and 7,249.43

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Solution

The fourth proportional to 13,217.72, 18,240.46 and 7,249.43 is: 10,004.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.72 : 18,240.46 = 7,249.43 : x
  2. Step 2: Convert to fraction form
    13,217.72/18,240.46 = 7,249.43/x
  3. Step 3: Cross multiply
    13,217.72x = 18,240.46 × 7,249.43
  4. Step 4: Simplify right side
    13,217.72x = 132,232,965.42
  5. Step 5: Solve for x
    x = 132,232,965.42/13,217.72
  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.