Home / 13,162.03-18,158.41-8,380.73

Finding the Fourth Proportional to 13,162.03, 18,158.41 and 8,380.73

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Solution

The fourth proportional to 13,162.03, 18,158.41 and 8,380.73 is: 11,562.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162.03 : 18,158.41 = 8,380.73 : x
  2. Step 2: Convert to fraction form
    13,162.03/18,158.41 = 8,380.73/x
  3. Step 3: Cross multiply
    13,162.03x = 18,158.41 × 8,380.73
  4. Step 4: Simplify right side
    13,162.03x = 152,180,787.31
  5. Step 5: Solve for x
    x = 152,180,787.31/13,162.03
  6. Step 6: Final answer
    x = 11,562.11

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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.