Home / 13,414.23-18,512.50-7,749.22

Finding the Fourth Proportional to 13,414.23, 18,512.50 and 7,749.22

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Solution

The fourth proportional to 13,414.23, 18,512.50 and 7,749.22 is: 10,694.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,414.23 : 18,512.50 = 7,749.22 : x
  2. Step 2: Convert to fraction form
    13,414.23/18,512.50 = 7,749.22/x
  3. Step 3: Cross multiply
    13,414.23x = 18,512.50 × 7,749.22
  4. Step 4: Simplify right side
    13,414.23x = 143,457,342.69
  5. Step 5: Solve for x
    x = 143,457,342.69/13,414.23
  6. Step 6: Final answer
    x = 10,694.42

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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.