Home / 7,915.32-11,874.60-2,720.52

Finding the Fourth Proportional to 7,915.32, 11,874.60 and 2,720.52

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Solution

The fourth proportional to 7,915.32, 11,874.60 and 2,720.52 is: 4,081.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.32 : 11,874.60 = 2,720.52 : x
  2. Step 2: Convert to fraction form
    7,915.32/11,874.60 = 2,720.52/x
  3. Step 3: Cross multiply
    7,915.32x = 11,874.60 × 2,720.52
  4. Step 4: Simplify right side
    7,915.32x = 32,305,086.79
  5. Step 5: Solve for x
    x = 32,305,086.79/7,915.32
  6. Step 6: Final answer
    x = 4,081.34

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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.