Home / 13,632.92-20,442.70-8,084.78

Finding the Fourth Proportional to 13,632.92, 20,442.70 and 8,084.78

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Solution

The fourth proportional to 13,632.92, 20,442.70 and 8,084.78 is: 12,123.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,632.92 : 20,442.70 = 8,084.78 : x
  2. Step 2: Convert to fraction form
    13,632.92/20,442.70 = 8,084.78/x
  3. Step 3: Cross multiply
    13,632.92x = 20,442.70 × 8,084.78
  4. Step 4: Simplify right side
    13,632.92x = 165,274,732.11
  5. Step 5: Solve for x
    x = 165,274,732.11/13,632.92
  6. Step 6: Final answer
    x = 12,123.21

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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.