Home / 13,941.18-20,912.74-5,621.27

Finding the Fourth Proportional to 13,941.18, 20,912.74 and 5,621.27

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Solution

The fourth proportional to 13,941.18, 20,912.74 and 5,621.27 is: 8,432.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,941.18 : 20,912.74 = 5,621.27 : x
  2. Step 2: Convert to fraction form
    13,941.18/20,912.74 = 5,621.27/x
  3. Step 3: Cross multiply
    13,941.18x = 20,912.74 × 5,621.27
  4. Step 4: Simplify right side
    13,941.18x = 117,556,129.87
  5. Step 5: Solve for x
    x = 117,556,129.87/13,941.18
  6. Step 6: Final answer
    x = 8,432.29

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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.