Home / 13,632.73-20,456.85-5,311.69

Finding the Fourth Proportional to 13,632.73, 20,456.85 and 5,311.69

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Solution

The fourth proportional to 13,632.73, 20,456.85 and 5,311.69 is: 7,970.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.73 : 20,456.85 = 5,311.69 : x
  2. Step 2: Convert to fraction form
    13,632.73/20,456.85 = 5,311.69/x
  3. Step 3: Cross multiply
    13,632.73x = 20,456.85 × 5,311.69
  4. Step 4: Simplify right side
    13,632.73x = 108,660,445.58
  5. Step 5: Solve for x
    x = 108,660,445.58/13,632.73
  6. Step 6: Final answer
    x = 7,970.56

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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.