Home / 13,217.64-18,240.76-7,249.25

Finding the Fourth Proportional to 13,217.64, 18,240.76 and 7,249.25

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Solution

The fourth proportional to 13,217.64, 18,240.76 and 7,249.25 is: 10,004.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,217.64 : 18,240.76 = 7,249.25 : x
  2. Step 2: Convert to fraction form
    13,217.64/18,240.76 = 7,249.25/x
  3. Step 3: Cross multiply
    13,217.64x = 18,240.76 × 7,249.25
  4. Step 4: Simplify right side
    13,217.64x = 132,231,829.43
  5. Step 5: Solve for x
    x = 132,231,829.43/13,217.64
  6. Step 6: Final answer
    x = 10,004.19

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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.