Home / 13,734.92-20,568.78-12,403.73

Finding the Fourth Proportional to 13,734.92, 20,568.78 and 12,403.73

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Solution

The fourth proportional to 13,734.92, 20,568.78 and 12,403.73 is: 18,575.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,734.92 : 20,568.78 = 12,403.73 : x
  2. Step 2: Convert to fraction form
    13,734.92/20,568.78 = 12,403.73/x
  3. Step 3: Cross multiply
    13,734.92x = 20,568.78 × 12,403.73
  4. Step 4: Simplify right side
    13,734.92x = 255,129,490.71
  5. Step 5: Solve for x
    x = 255,129,490.71/13,734.92
  6. Step 6: Final answer
    x = 18,575.25

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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.