Home / 13,941.70-20,915.56-4,080.22

Finding the Fourth Proportional to 13,941.70, 20,915.56 and 4,080.22

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Solution

The fourth proportional to 13,941.70, 20,915.56 and 4,080.22 is: 6,121.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,941.70 : 20,915.56 = 4,080.22 : x
  2. Step 2: Convert to fraction form
    13,941.70/20,915.56 = 4,080.22/x
  3. Step 3: Cross multiply
    13,941.70x = 20,915.56 × 4,080.22
  4. Step 4: Simplify right side
    13,941.70x = 85,340,086.22
  5. Step 5: Solve for x
    x = 85,340,086.22/13,941.70
  6. Step 6: Final answer
    x = 6,121.21

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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.