Home / 13,725.29-18,942.57-8,950.34

Finding the Fourth Proportional to 13,725.29, 18,942.57 and 8,950.34

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Solution

The fourth proportional to 13,725.29, 18,942.57 and 8,950.34 is: 12,352.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,725.29 : 18,942.57 = 8,950.34 : x
  2. Step 2: Convert to fraction form
    13,725.29/18,942.57 = 8,950.34/x
  3. Step 3: Cross multiply
    13,725.29x = 18,942.57 × 8,950.34
  4. Step 4: Simplify right side
    13,725.29x = 169,542,347.26
  5. Step 5: Solve for x
    x = 169,542,347.26/13,725.29
  6. Step 6: Final answer
    x = 12,352.56

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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.