Home / 19,591.18-29,374.92-7,890.73

Finding the Fourth Proportional to 19,591.18, 29,374.92 and 7,890.73

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Solution

The fourth proportional to 19,591.18, 29,374.92 and 7,890.73 is: 11,831.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,591.18 : 29,374.92 = 7,890.73 : x
  2. Step 2: Convert to fraction form
    19,591.18/29,374.92 = 7,890.73/x
  3. Step 3: Cross multiply
    19,591.18x = 29,374.92 × 7,890.73
  4. Step 4: Simplify right side
    19,591.18x = 231,789,489.05
  5. Step 5: Solve for x
    x = 231,789,489.05/19,591.18
  6. Step 6: Final answer
    x = 11,831.32

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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.