Home / 7,915.90-11,874.46-2,650.93

Finding the Fourth Proportional to 7,915.90, 11,874.46 and 2,650.93

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Solution

The fourth proportional to 7,915.90, 11,874.46 and 2,650.93 is: 3,976.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,915.90 : 11,874.46 = 2,650.93 : x
  2. Step 2: Convert to fraction form
    7,915.90/11,874.46 = 2,650.93/x
  3. Step 3: Cross multiply
    7,915.90x = 11,874.46 × 2,650.93
  4. Step 4: Simplify right side
    7,915.90x = 31,478,302.88
  5. Step 5: Solve for x
    x = 31,478,302.88/7,915.90
  6. Step 6: Final answer
    x = 3,976.59

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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.