Home / 13,057.15-18,022.97-8,341.43

Finding the Fourth Proportional to 13,057.15, 18,022.97 and 8,341.43

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Solution

The fourth proportional to 13,057.15, 18,022.97 and 8,341.43 is: 11,513.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,057.15 : 18,022.97 = 8,341.43 : x
  2. Step 2: Convert to fraction form
    13,057.15/18,022.97 = 8,341.43/x
  3. Step 3: Cross multiply
    13,057.15x = 18,022.97 × 8,341.43
  4. Step 4: Simplify right side
    13,057.15x = 150,337,318.44
  5. Step 5: Solve for x
    x = 150,337,318.44/13,057.15
  6. Step 6: Final answer
    x = 11,513.79

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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.