Home / 13,576.33-18,734.34-8,272.86

Finding the Fourth Proportional to 13,576.33, 18,734.34 and 8,272.86

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Solution

The fourth proportional to 13,576.33, 18,734.34 and 8,272.86 is: 11,415.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,576.33 : 18,734.34 = 8,272.86 : x
  2. Step 2: Convert to fraction form
    13,576.33/18,734.34 = 8,272.86/x
  3. Step 3: Cross multiply
    13,576.33x = 18,734.34 × 8,272.86
  4. Step 4: Simplify right side
    13,576.33x = 154,986,572.01
  5. Step 5: Solve for x
    x = 154,986,572.01/13,576.33
  6. Step 6: Final answer
    x = 11,415.94

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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.