Home / 19,792.92-29,686.20-7,318.86

Finding the Fourth Proportional to 19,792.92, 29,686.20 and 7,318.86

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Solution

The fourth proportional to 19,792.92, 29,686.20 and 7,318.86 is: 10,977.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,792.92 : 29,686.20 = 7,318.86 : x
  2. Step 2: Convert to fraction form
    19,792.92/29,686.20 = 7,318.86/x
  3. Step 3: Cross multiply
    19,792.92x = 29,686.20 × 7,318.86
  4. Step 4: Simplify right side
    19,792.92x = 217,269,141.73
  5. Step 5: Solve for x
    x = 217,269,141.73/19,792.92
  6. Step 6: Final answer
    x = 10,977.11

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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.