Home / 25,318.42-37,974.36-7,787.86

Finding the Fourth Proportional to 25,318.42, 37,974.36 and 7,787.86

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Solution

The fourth proportional to 25,318.42, 37,974.36 and 7,787.86 is: 11,680.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,318.42 : 37,974.36 = 7,787.86 : x
  2. Step 2: Convert to fraction form
    25,318.42/37,974.36 = 7,787.86/x
  3. Step 3: Cross multiply
    25,318.42x = 37,974.36 × 7,787.86
  4. Step 4: Simplify right side
    25,318.42x = 295,738,999.27
  5. Step 5: Solve for x
    x = 295,738,999.27/25,318.42
  6. Step 6: Final answer
    x = 11,680.78

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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.