Home / 14,787.32-22,120.20-13,489.68

Finding the Fourth Proportional to 14,787.32, 22,120.20 and 13,489.68

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Solution

The fourth proportional to 14,787.32, 22,120.20 and 13,489.68 is: 20,179.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,787.32 : 22,120.20 = 13,489.68 : x
  2. Step 2: Convert to fraction form
    14,787.32/22,120.20 = 13,489.68/x
  3. Step 3: Cross multiply
    14,787.32x = 22,120.20 × 13,489.68
  4. Step 4: Simplify right side
    14,787.32x = 298,394,419.54
  5. Step 5: Solve for x
    x = 298,394,419.54/14,787.32
  6. Step 6: Final answer
    x = 20,179.07

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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.