Home / 13,707.92-20,523.68-8,765.36

Finding the Fourth Proportional to 13,707.92, 20,523.68 and 8,765.36

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Solution

The fourth proportional to 13,707.92, 20,523.68 and 8,765.36 is: 13,123.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,707.92 : 20,523.68 = 8,765.36 : x
  2. Step 2: Convert to fraction form
    13,707.92/20,523.68 = 8,765.36/x
  3. Step 3: Cross multiply
    13,707.92x = 20,523.68 × 8,765.36
  4. Step 4: Simplify right side
    13,707.92x = 179,897,443.72
  5. Step 5: Solve for x
    x = 179,897,443.72/13,707.92
  6. Step 6: Final answer
    x = 13,123.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.