Home / 13,915.91-20,874.74-4,556.90

Finding the Fourth Proportional to 13,915.91, 20,874.74 and 4,556.90

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Solution

The fourth proportional to 13,915.91, 20,874.74 and 4,556.90 is: 6,835.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,915.91 : 20,874.74 = 4,556.90 : x
  2. Step 2: Convert to fraction form
    13,915.91/20,874.74 = 4,556.90/x
  3. Step 3: Cross multiply
    13,915.91x = 20,874.74 × 4,556.90
  4. Step 4: Simplify right side
    13,915.91x = 95,123,975.55
  5. Step 5: Solve for x
    x = 95,123,975.55/13,915.91
  6. Step 6: Final answer
    x = 6,835.63

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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.